AV Geeks 16mm Lunch 8-16-2022

so so so so so so so so so so hello everybody i'm skip alzheimer welcome to the av geeks lunchtime streaming show um yeah so uh we watch old 16 millimeter films and this is what we just saw was part of the library of congress paper print collection and technically those films first existed on 35 millimeter and were in distribution and we're being pirated like crazy uh movie piracy was a big deal in the early 20th century believe it or not uh labs unscrutable labs would uh take prints of film that were being distributed and make their own copy and then do their own distribution and make money off of it without paying the original copyright holder so it was it was clear that uh studios had to figure out a way to protect their intellectual property and so what they did uh because the library of congress didn't quite have a way the copyright office didn't quite have a way to to deal with uh moving images uh what was done kind of in the interim is they let studios uh submit prints so what they would do is they would basically and this is anecdotal i could be getting this wrong i have a film scholar on facebook bucky grim who's watching he might have to correct me um but they would basically take the film and they would make a print a paper print that was several of frames more than several friends probably you know 20 30 frames on uh 8 by 10 or 10 by whatever size print and they would submit a big pile of uh prints uh that were basically the film frames printed on each frame printed on uh you know like a film like a print a photographic print and that would be submitted and that would be copyrighted uh so that was the way they did it until somebody library congress they figured out like no no you can actually submit a film print like the actual thing on a reel and we'll accept that as copyright what happened is that those prints were forgotten because those were early you know that's the early 20th century somebody discovered them and said hey you know what's interesting is a lot of these these film prints don't exist anymore uh and on film because they were on nitrate the companies disappeared uh films got beat up um destroyed whatever and so someone figured out that they could strip from the paper print and build big rolls of paper print and then run it through what's called optical printer and then you would have film a camera that would be taking pictures of it on motion picture film and then they kind of recreated all these amazing uh lost films the quality wasn't great and for some reason maybe this was a cost issue they only shot it to 16 millimeter um then it looks like blackhawk uh licensed it or used it and distributed it for because blackhawk a lot of early film fans bought blackhawk prints and so uh it's only recently probably within the last 10 years that library of congress has revisited that collection uh the of the the reels of the paper prints that have been cut up and they're rescanning them at high resolution um and doing some post work on them to kind of get them close back to what that what they were before uh and it's really amazing amazing stuff uh so anyways that's that's totally geeking out there that's what we do at 80 geeks we totally geek out so anyways these uh i've been scanning films from a fellow collector uh craig baldwin and he sent me a bunch of these loc um paper print uh reconstituted films and so we'll be watching some of those along with some of the other films that he sent us uh in the meantime i think it's time uh to learn about honeybees honeybees enjoy these larvae are three days old until now they have been fed royal jelly from glands in the mouth of a worker this worker is opening a honey cell of stored honey to feed the larvae workers also make stored pollen into food for the larvae after the third day these foods are given to larvae which will develop into workers or drones notice how a worker deposits food for this four-day-old larvae after six days the larva spins a cocoon inside this cocoon it will change into a full-grown bee first the larva sheds its skin and changes into a pupa as we see here with the action speeded up the larvae stay in the cocoon for 12 days and develop into adult bees then each bee starts to know its way out of the cocoon and the cell the head comes out first it takes a little time and requires some effort then at last the bee emerges and is ready to do its work in the nest the first task of the young workers is to feed the larvae in the nest as they grow older the workers ventilate the nest by fanning with their wings later they become guards of the nest a bumblebee accidentally enters the guards sense that it is a stranger the bees attack the intruder and sting it to death but they also die as they try to remove their stings from the body of the victim other guards drag the dead bumble bee to the entrance and push it out in the summertime when the nest becomes full of eggs and larvae the workers get ready to raise a new queen they select a female larva which they will rear to become a queen they tear apart her cell and enlarge it queens are bigger than workers or drones and need larger cells the workers feed the queen larva royal jelly only other bee larvae receive pollen and honey after the third day the queen larva grows very quickly after five and a half days the workers seal up the queen cell inside her cell the queen larva is immersed in royal jelly she will change from a grub to a pupa and finally into an adult queen in the meantime the old queen and the field bees prepare to leave the nest add the cap over her cell and emerges as a full-grown queen the new queen has found another queen cell in the nest she tears the cell apart this queen larva will die here is another adult queen bee just hatching from itself the two queens meet and fight a life and death struggle the one queen stings her rival to death but the victor does not die because her sting can be removed from her victim some workers watch the battle the field bees which left the nest with the old queen settle temporarily on a branch the nest bees stay with the new queen scout bees leave the swarm and look for a place to build a new nest when the scouts have found a suitable place for a nest the thousands of bees in the swarm follow them to it the swarm makes a bee line toward its new home after the swarm settles the workers start to build a new comb these bees are making wax the wax is secreted by scales on the underside of the abdomen and is scraped off with the sharp hind legs the worker then takes the wax into her mouth and chews it until it is stopped many bees working together scoop out the wax dabs and shape them into cells watch the bee at the left these workers are gathering food for the new nest at the same time they cross pollinate the flowers thereby helping them to produce seeds through a magnifying glass we see a worker gathering food this is where the bees get the nectar these are the anthers which contain the pollen a worker sips nectar from the blossom with its long sucking mouth and stores it in her body in a honey sack when the bee returns to the nest she circles around the cells this is called the dance then she brings up the nectar from the honeysack into her mouth there it is mixed with secretions which change it into honey she deposits the mixture in a honey cell when bees visit flowers they get the powder-like pollen on the hairs of the body with the cones on its legs the bee brushes the pollen from its body into the pollen basket on each hind leg the bee actually packs the pollen into these sacks until they bulge flight is a little difficult with such a heavy load the bee carries the pollen to the nest in these baskets back in the nest the worker dances around doing a pollen jig before she deposits the pollen she pries off the pollen pellets and packs them tightly into a pollen cell the bees use pollen to make bees bread extra food is stored here in the comb for the bees that will live through the cold winter season throughout the year worker bees are busy caring for their house of wax these perform two important services they help to cross pollinate many kinds of flowers and they give us honey which through the ages has been an important food of man i mean those early uh erp films uh that were later required by encyclopedia britannica always get me because there's no like you know outro music or even like a summing up of what you just saw like a lot of educational films they kind of recap but today we they don't say today we learn but they recap what you saw so kind of you know read pinging well we just got a lot of information let's go back through and revisit we don't get that uh with these early films they just kind of stop and if i'm not paying attention like i'm trying to thread up another thread up another film then i miss what was going on uh here is uh another encyclopedia britannica film but this is actually by encyclopedia britannica and is in color and i think that they're better at this so here's electrons at work enjoy [Music] what is an electron an electric particle the complete circuit elects flow an electric current is a flow of electric charges with electric charges flow in the opposite direction when another bulb is added to the circuit more electric charges flow the basic electric charge is a particle called the electron i can't see any electrons they're far too small to be seen if you can't see them how do you know they exist you can't see the wind but that's no reason to believe that the wind doesn't exist you can't see the wind but you certainly can see things the wind does making this wheel spin the wind no there's no wind blowing inside this glass tube the wind is turning this wheel it's against the windmill and makes it turn electrons are hitting against the blades of this wheel making it turn if we disconnect the power supply that makes the electrons move the wheel stops turning electrons flow away from here as they move through the tube they hit against the blades of the wheel you can't see the electrons but you can see the effect they have on the wheel the electrons that hit against the wheel and make it turn must have mass when an object has mass it can move other objects by colliding with them if this wrecking ball didn't have mass it couldn't exert a force to smash against the wall guns didn't have mass they couldn't make the wheel turn this and many other experiments if in order to once this small weight you'd have to put this many electrons on the other pan of the balance every material there is is made up of tiny particles called atoms this liquid is called copper sulfate it's partly made up of atoms of copper these two metal strips are platinum the copper sulfate has no effect on the platinum strips now there is a complete circuit the battery is acting as a pump pushing electrons the bubbling suggests that something is happening inside here and it was the right-hand strip of platinum is now covered with a thin layer of copper the bubbles are on the other side and now copper atoms are on the left hand strip of platinum it's as if electrons were connected to the copper atoms because when electrons flow in this circuit copper atoms move too and in fact we believe today that all atoms are partly made up of electrons balloons are made of atoms electrons are connected to atoms so there are electrons on the two balloons there are also electrons on the silk scarf when the balloon is rubbed with a silk scarf electrons are actually rubbed off the silk onto the balloon so the silk has a shortage of electrons and the balloons have extra electrons any object that has a shortage of electrons or any object that has extra electrons is said to have an electric charge the two balloons each have extra electrons that means they both have the same kind of charge when two objects have the same kind of charge they repel each other that means that they push away from each other we're rubbing electrons off the scarf onto the hanger now the hanger has extra electrons the balloons also have extra electrons so the balloons and the hanger all have the same kind of charge objects with the same kind of charge repel each other the scarf has a shortage of electrons objects with different kinds of charges attract each other the hairbrush doesn't attract or repel the banana but what if we could rub some electrons off the cat onto the brush we can even attract a stream of water there seem to be electrons in all these materials at least electrons are being forced off here and made to travel in a narrow stream down this tube the other end of the tube is coated with fluorescent paint where the stream of electrons hits it it glows apparently the hanger and the stream of electrons have the same kind of charge because they repel each other if the stream of electrons inside the tube could be repelled and attracted fast enough and in just the right directions we could make a picture as complicated as this a television picture is made by a stream of electrons that hit against a screen coated with fluorescent paint if you look through a magnifying glass you can easily see the lines made by the stream of electrons as it has moved back and forth across the screen at a very high speed the electric charges that make the stream of electrons move in the proper way to form a picture are controlled by these electron tubes electron tubes act like valves or faucets they can turn a flow of electrons on and off they act very quickly these tubes can turn a flow of electrons on and off a million times a second these are transistors transistors can do what electron tubes do although they do it in a different way transistors have the advantage of being very small the fact that electrons are easy to control makes them an extremely useful move in such complicated machinery as this this is an electronic computer the turning wheels are not the important moving parts of the computer the important moving parts are the electrons themselves moving in the circuits of the machine electronic computers are used in science and industry to solve complicated mathematical problems let's try this one out on an easy problem for example adding this column of numbers together the column of numbers is written in code on these cards with holes punched in them it took the electronic computer about a millionth of a second to add those numbers together we haven't proven to you that there are such things as electrons you haven't seen one and the effects you have seen could have been caused by something else but the fact remains that there are many things in the world today that wouldn't exist if there weren't some kind of tiny particle that has mass and that carries an electric charge i have my uh spaghetti lunch here um because it is lunch time uh so um it was a great film i what i love about the that series of films is that they do these really fascinating experiments and what i also love about it is that everything is like hands there's not as many shots of people's faces and there's certainly nobody talking uh so that that's really kind of kind of great in my mind it's phenomenal all right uh let's see what do we want to watch what do we want to watch so many options we'll watch this flammable liquid fire safety and then we'll watch another film from the scanner i hope i hope it's gonna work it's got some water damage but we'll give it a shot um also kevin thank you so much for the coffee one way you can support av geeks is buying this coffee at ko-fi.comgeeks you can also just hit the thumbs up button the like button those things really kind of great so anyway here's flammable liquid safety fire safety enjoy so so flammable liquids thousands of gallons stored in huge tanks modern industry uses flammable liquids in tremendous quantities received in tank cars tank trucks and drums manufacturing plant that doesn't use dipping coating spraying as a solvent as fuel or in chemical processes why do we have to handle flammable liquids with such great care let's answer that question by setting up a demonstration to show the tremendous power in a drum of gasoline when gasoline or any other low flash point liquid is ignited it flashes into flame instantly the intense burning produces tremendous heat when this heat affects the other drums something is bound to happen what you see here is the tremendous power released by only 40 gallons of gasoline the bursting of a single drum you can well imagine what the result would be if this uncontrolled power were released inside the buildings of your plant when flammable liquids become ignited damage and destruction are inevitable unless the danger has been foreseen and unless adequate fire protection has been provided we are now getting ready to set off an explosion in the concrete test tunnel to speed things up we're going to spray gasoline over warm bricks explosions can be just as destructive as fire or even more so when the spray hits the warm bricks it vaporizes and forms an explosive mixture with air which fills the entire tunnel one end of the tunnel is a wooden construction inside the explosive mixture is ready to be ignited when an explosive mixture is ignited all the energy is released at once tremendous pressure develops almost instantly and the weakest part of the construction gives way this sort of thing can happen whenever low flash flammable liquids are left exposed so they can vaporize into the air if means are provided for venting serious structural damage will be prevented explosion venting windows for instance saved this building by opening automatically and relieving the pressure but if the pressure is bottled up as it was in the enclosure around this oven destruction is bound to be sudden and complete what are the precautions that we all must keep in mind in dealing with flammable liquids first of all make sure there is no source of ignition that could set off a fire or explosion a spark or a tiny flame is all that's needed to ignite a flammable liquid of low flash point when the vapors catch fire the entire surface flashes into flame wherever flammable liquids might be exposed it's absolutely essential to eliminate any chance of sparks or flame take smoking for instance the man who ignores the no smoking rule is no friend of yours he risks the safety of the place you work he endangers your job and may even endanger your life a moment of carelessness with a lighted match may mean a lifetime of regret play safe obey the rules don't smoke or use matches in any way in flammable liquid areas [Music] static electricity is another common fire cause where flammable liquids or compounds are exposed as for example at spreaders and coating machines how does static electricity occur on a machine like the one we just saw the static is generated where the cloth leaves the rolls let's see what a static spark looks like maybe you remember the machine used to demonstrate static electricity in the laboratory when a sufficient charge is built up a spark jumps across the air gap this is the spark that means trouble when it occurs near flammable liquids now let's run the electrodes from the static machine and hold them over a pan of liquid you're not likely to see the spark when it occurs but there's no question about the result produced what's the answer how can we prevent static sparks at processes where flammable liquids are handled one way is to humidify the air this puts a thin and invisible film of moisture on all objects which drains away the static as soon as it forms a dangerous charge cannot accumulate another way is to provide electrical grounds so the static will quickly be carried away first the machine frame is grounded then the spreader knife is grounded to the machine frame but we still have to take away the static that forms at the rolls this is done by the use of static neutralizers of which these are three typical examples the neutralizers are placed at the points where the cloth leaves the roll as near to the cloth as possible across the entire width of the cloth and one end is connected to a ground what does this grounding accomplish suppose we attach a ground wire to one of the electrodes from the static machine the machine generates static electricity just as it did before but now we get no spark and no fire [Music] the ground wire carries off the static charge so to do your part in preventing static fires if you operate a flammable liquid process examine the grounds frequently and keep them in good condition [Music] here is one of the most serious of all ignition sources the sparks that are given off from cutting and welding torches you don't need much imagination to guess what will happen when one of these globules comes in contact with the flammable liquid the effect is instantaneous and the consequences may be tremendous if large quantities of liquid are involved in an important manufacturing area let us take a look at only one of the many fire disasters that have been caused by cutting and welding equipment the lesson is clear never use cutting or welding equipment in such a way that a spark can reach and ignite flammable vapors let's now spill a little gasoline to illustrate another common source of ignition the misuse of electricity when an ordinary electric lamp is used near flammable liquids there is always a chance that it will be broken accidentally even with a wire guard an ordinary lamp can still be broken what you really need is an explosion-proof outer globe so that when the light bulb breaks no fire will result electrical arcs and sparks from any source must be avoided and that's why in flammable liquid areas special electrical equipment is needed you cannot rely for safety on the fact that a liquid has a high flash point some of our worst fires have been in heat treating areas where large quench tanks contain hundreds of gallons of oil quench oil does not ignite readily unless it is first heated to its flash point what often happens is that a conveyor gets hung up a red-hot part remains partly immersed and the oil heats up soon it catches fire eventually as all the oil becomes heated the fire can become just as intense as if the liquid were gasoline or any other low flash liquid heat from such a fire will buckle steel work and seriously damage nearby equipment so wherever high flash liquids are heated or might accidentally become heated treat them with the same care as the more easily ignited liquids [Music] these are the vapors given off from a piece of dry ice notice how they are heavier than air settle to the floor and collect in the pit low flash flammable liquids are continually giving off invisible vapors which act in exactly the same way it is these vapors not the liquid that ignite and burn this time we will use a piece of waste saturated with gasoline you cannot see the vapors but they are settling to the floor and flowing into the pit just as the dry ice vapers did when they reach the spark plug fire immediately flashes back to the piece of waste the simple demonstration shows why it is so dangerous to use flammable liquids exposed to the air and how if you do the unseen vapors are likely to reach a source of ignition and envelop it would be extremely dangerous in a flammable liquid area to permit any vapors to collect in this demonstration we've provided ventilating outlets at low points connected to exhaust ducts with a fan continually in operation to draw off the vapors as the vapor-laden air is removed it must be replaced with fresh air from intakes located near the ceiling efficient ventilation like this makes certain that the atmosphere will be kept free of any dangerous concentration of vapors when you have to draw gasoline or a solvent from a drum there's a right and a wrong way to do it this is the wrong way let us see what might happen an open container could be easily upset and spill its contents vapors could ignite from a static spark or any nearby ignition source always use a safety container it doesn't expose a liquid surface and if upset it will not spill the contents a safety faucet should be used which automatically stops the flow when the hand is taken away static sparks can be prevented by grounding the drum itself must be grounded and the ground wire must be connected from the drum to the container into which the liquid is drawn filling safety cans by hand pumping is the best method of all because it eliminates the leaking and drippage that sometimes occurs when faucets are used you cannot use just any kind of container if you want to handle flammable liquids safely be sure to use an approved safety can a strong spring cover keeps it tightly shut when not in use if the can is tipped over accidentally it will not spill its contents [Music] a flame arrester screen and the spout protects the contents from ignition an approved bench can is used in operations that require the washing of small parts let's see how a fire in an approved bench can compares to one in an ordinary open can the bench can produces only a slight flame the ordinary can lets the gasoline burn freely extinguishing the fire in the bench can is simply a matter of flipping the cover into place if you do any swabbing with a cloth the plunger type is the can to use accidental ignition need cause no concern the fire is feeble and it soon dies out [Music] a larger size of wash can is sometimes used for cleaning or dipping the cover is held open by a fusible link in case of fire the link melts and the cover drops into position extinguishing the fire [Music] what are the best extinguishing agents to use on a fire in a tank of flammable liquids some extinguishing methods are not only unsuitable but positively dangerous a hose stream for instance makes the fire worse by spreading it the gasoline floats on the water and keeps burning later we'll see that the application of water by means of automatic sprinklers is not objectionable and is actually essential for good protection the ordinary soda acid extinguisher is also unsuitable for flammable liquids the stream is a water solution and has the same effect as a very small hose stream there are three types of extinguishers that can be used effectively on flammable liquid fires one is foam which spreads a blanket over the burning surface and smothers the fire another a good extinguisher is carbon dioxide which reduces the oxygen content in the air below the point which is necessary for combustion [Music] a third extinguisher good for flammable liquid fires is the dry chemical type which discharges a cloud of dry inert powder so remember for flammable liquid fires there are three recommended types foam [Music] carbon dioxide dry chemicals many dipping processes involve such large quantities of flammable liquids that portable extinguishers would be of no use fixed piping systems are provided instead they operate automatically or can be turned on by hand take foam for instance here the foam is discharging from a special outlet mounted at the rim of the tank a few inches above the liquid surface eventually the blanket of foam covers the entire surface and the fire is extinguished carbon dioxide also is used through fixed piping systems for the protection of flammable liquid areas or processes it may be applied directly to tanks by means of special nozzles along the edge or above the tank or it may be used in small rooms or enclosures where the entire space can be flooded with the gas the heat of the fire quickly sets off a detector which operates the automatic dripping mechanism as the inert gas floods the area it cuts off the oxygen supply and the fire goes out [Music] water spray can also be used in pipe systems if the flammable liquid has a high flash point the oil used as an insulating medium and transformers is an example of a high flash point liquid it is not easily ignited but when an electrical breakdown occurs the intense arcing forces the oil out of the transformer case and ignites it a fixed system of water spray is the best form of protection for this kind of fire when the water spray goes into action it quickly cools the oil below its flash point and the fire goes out here is one of a number of fires that have started in flammable liquids and caused great destruction the question might well be asked how can we prevent fire disasters like this the answer is automatic sprinklers sprinklers are needed over all areas where flammable liquids are used regardless of other types of extinguishing systems here is a fire in a low flash point flammable liquid let's see what happens with the sprinklers in operation the sprinklers can't be expected to extinguish a fire in a low flash liquid but they perform two very important functions first they reduce the intensity of the fire and keep the surroundings cool thus preventing the fire from igniting any combustible material in the vicinity and second they keep the building steel work cool thus preventing buckling and collapse [Music] if the process involves a high flash liquid like quench oil we might well have just as intensifier but in this case the sprinklers will extinguish the fire because the water quickly cools the oil down below its flash point you've seen the great hazard of flammable liquids you've seen the great destruction they can cause now do your part to safeguard their use remember treat flammable liquids with respect no smoking no matches no open flames prevent static sparks no cutting no welding use safe electrical equipment [Music] make sure ventilation is operated use safety containers use the right extinguisher foam co2 dry chemicals [Music] inspect and maintain extinguishing systems make sure automatic sprinklers are ready for action [Music] the swiss drill is the master pool of the mechanical age 20th century civilization is built around it the twist drill is generally formed from bar stock the correct length is cut off and centered in preparation for machining of the shank the flute and the margin were common tools as 100 bc however the modern twist drill with its mill flute came into existence about 1860 the swift drill is generally formed by milling two equal and opposite spiral grooves in a cylindrical piece of steel the groove or flute form suitable cutting edges on the tone shaped end of the drill the fruits also provide channels for the removal of chips and allow passage for a lubricant to reach the cutting edges after the drill has been formed it is heat treated and clenched in an oil bath for hardening heat treating is followed by grinding of the margins finally the point is ground to get out of the drill the efficiency that is built into it requires some fundamental knowledge of how it stood and should not be used this can best be done by looking at a drill as though it were an assembly of parts first there's the tang then the shank the body the flutes the margin the body clearance the web and the point the shank of the drill is the part that fits into the rotating device there are many types of shanks the tapered shank and the straight shank are most commonly used the body of the drill is designed according to the type of work it is to perform this one is for general work this one for deep holes the flutes are spiral grooves on opposite sides of the drill their junction with the point forms the cutting lift the flutes provide an escape for chips and a channel for the coolant to reach the work web is a tapered column that separates the flutes it runs from the point to the shank and could be called the backbone of the drill the web thickness increases toward the shank as seen in these two cross sections here's how the web would appear if it could be removed from the drill the margin is the leading edge along the flute the milled portion behind it is called body clearance here only the margins are touching the ring gauge body clearance reduces the amount of rubbing surface the point of the drill is the cone-shaped surface that does the cutting in review here are the parts of the drill the flutes which terminate at the cutting lift the margins which form the full diameter the body clearance which reduces the amount of rubbing surface the dead center or chisel edge the cutting lift and the surface of the point where most drilling troubles begin let's find out why the surface behind the cutting lips must slope away this is called lift clearance a slope angle of 8 to 12 degrees is suitable for most work the angle of lift clearance is increased toward the center of the drill this is done by making the chisel edge angle 120 to 135 degrees the angles formed by the cutting lifts and the axes of the drill are normally 59 degrees these angles should always be equal and the cutting lifts must be of equal length know the angle 8 to 12 degrees lift clearance 120 to 135 degrees chisel edge angle at the center 59 degrees for the lift angles with cutting lips of equal length the best method of pointing a drill to these angles is to use a machine pointer when one is available machine pointing eliminates guesswork saves time and money and lengthens the useful life of the drill in pointing a drill never be satisfied until you have checked the angles and dimensions carefully precision in pointing a drill will pay rich dividends in its performance in pointing by hand on a grinding wheel the operator must have a thorough understanding of the angles and clearances that govern the efficiency of the twist drill and because points vary for different materials he must know the characteristics of the material he is going to drill and grind the point accordingly the next step in efficient drilling is to be sure that the drill is properly held first see that the shank and the holder are clean dirt or chips will cause the drill to run out use a lead or babbitt hammer to seat the drill if bushings are not used it is good practice to spot the hole before starting the drill into the work the twist drill properly pointed and skillfully used is the most efficient tool in the machine shop one way to keep a drill operating efficiently is to handle it with care use a drip to remove it from the press in order to avoid damaging the tank this drill has been properly cared for and is as good as new but too often the story does not have such a happy envy why do so many drills end up in the scrap box long before their time let's look into it first the point here the angle is correct but the lips are not of equal length this drill will produce an oversized hole the short cutting lift which is on the left has been doing most of the work the drill was supposed to produce a hole the size of the plug gauge this happens when the cutting lifts are of unequal length the same thing happens when the lips are of equal length but the angle is unequal here the left lip has been doing most of the work the result is an oversized hole in a combination of these errors both lips and angles are unequal this produces an unbalanced condition that will show up in the finished hole this unbalanced drill actually cuts two diameters the plug gauge indicates the extremes produced by a drill with both lips and angles unequal i can check that gear in a minute so don't touch anything okay [Music] hey get down from there now [Music] what if it bumped that control by accident you'd be mincemeat by now what have i told you you don't work on equipment when the engine's running well i told them not to touch anything all right i guess i wasn't thinking you weren't thinking you mean you'll work on engines and machinery and not think of your own personal safety here shake hands with danger shake hands with danger [Music] i was young and feisty never did things by the book just let me get my tool box and i'll take myself a look i climbed up on a dozier with my mechanics pride said you can keep it running friend while i poke around inside shake hands with danger meet a guy you want to know i used to laugh at safety now they call me three finger joe [Music] although i learned a lesson i forgot it soon enough the knicks and burns and scratches showed the young ones i was tough till another morning i was grinding on some steel my other hand got careless and fed my skin into the wheel shake hands with danger step right up and say hello wheels and metal are what made me feel three-fingered [Music] i've seen mechanics burning and i've seen them take a fall just to save themselves a minute i've seen them lose it all i've watched them caught in trouble seen them take a chance and lose they get careless for a moment and spend a lifetime with the blues [Music] [Applause] me [Music] [Music] [Music] walk around inside [Music] move around inside [Music] shake hands with danger and some friends i used to know compared to them i'm lucky to be just three finger joes [Music] [Laughter] yeah so there you go i was hoping there was going to be more abuses of the twist drill than uses but oh well there you go um so i put a link to the shirt that i'm wearing uh this was actually designed uh by a friend of mine who is at the nc state library and it's not official but it does use the logo that is in the film um also uh thank you for watching and for donating and for thumbs ups and likes and subscribes those are great ways to game the algorithm so that we can get more popular and have more bots in the comments that's really what we're trying to get to is more bots um if you like what you saw you can go to ko dash fi.com slash ap geeks and bias coffee uh we're also working on our patreon um so patreon.comgeeks it's a way to support us as well um you can also go to avgeeks.com and see another 24 7 channel that we have unfortunately it doesn't really have comments so it's just kind of plain stuff like old lunch shows et cetera so if you're looking for if you feel like gosh i just am now waking up and i want to watch more of these films then you go to avgeeks.com um speaking of which so we did last weekend a couple days ago an experiment where we ran 68 hours worth of content and i would love your advice if you saw it i've gotten some great uh feedback about what's important and one of the things is important is people really love this show they love watching it they love commenting they love the community which is you guys and so kudos that's really makes me feel good so uh we're not that's this is not gonna ever go away even if we did a 24-hour show we would still set aside a lunch a live lunch and this will probably happen unless for some reason i can't have lunch which likely will never happen anyways um if you saw the 24 7 streaming channel and you have some words for me i would love to hear them and i might ask you some follow-up questions as well um it's in the comments you can email me at av geeks gmail.com and just let me know everybody have a great rest of your day um rewind or the devil will get you we'll see you tomorrow take care you