Testing Radiation from Tungsten, Japanese Steel | Welding Metals Tested
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- čas přidán 30. 03. 2019
- I use a Geiger-Mueller device to test the ionizing radiation from Thoriated Welding Tungstens, USA Aluminum and Japan Steel.
Good news; none of the aluminum nor steel showed any discernable Cobalt-60 contamination. - Věda a technologie
Nobody knows until they look, and next thing you know your cat is dead.
Schrodinger's Dewclaw?
Either working or not working until observed by management.
Least its alive when you arent lookin
Or is it?
Heil Schrodinger.
Gregg Bond in my experience, management always comes around when I’m not working which skews their perception
I was the engineer on a project for a new low background shielded facility and high purity germanium radiation detectors. I was told that we had to build the shielding out of steel cast prior to 1945 because all steel cast after 1945 is contaminated due to atmospheric testing of nuclear weapons. I said no problem but first you prove it to me and show me test data on modern steel. We tested about a dozen samples of modern steel including a piece from our existing low background shielding that came off a pre 1945 war ship. The results showed that half the samples of modern steel were lower in background radiation than our existing low background shielding. We built the new facility using freshly cast steel from a Montreal steel mill.
Trust, but verify.
Watching Chernobyl are we?
@@jeffcederwall4604 Yes, but that's not where that came from. My QA department has it printed on all their jackets.
Watched a video on this a while back but basically it was a problem after ww2 because most steel mills used straight atmospheric air to blow into the furnaces contaminating everything but today most steel mills use pure oxygen which limits the problem
Side note: reducing radiation in steel (albeit not to the extreme you mentioned) is of interest for more than just test equipment. When you have a 32" diameter electrode cranking out 140,000 amps in an electric are furnace and obliterating everything in it's path, it's best to have as little radiation present as possible. I work at a steel mill, and all of the scrap we melt goes through multiple ultra-sensitive radiation detectors before it gets anywhere near our furnace. Even something as unassuming as rainwater that has carried irradiated particulate from higher up in the atmosphere and pooled in the bed of a dump truck is enough to set them off. Arc furnaces generate a lot of off-gas and dust, and if what you're trying to melt is radioactive, it's a bad time for everyone.
What happens if a price of radioactive material gets in it?
Prolly just scrap after that always will have someothe rapplication tho
is this wy all the scrap merchants around me have radiation detectors you drive through? I have seen it go off when an old clock with the glowing hands went through. always wondered.
@@liamshockley1856 The big deal isn't what happens to the material you are melting. You Really don't want contaminate your equipment and your exhaust-system/filter-system. At the mill I worked at, if the exhaust-system would require de-contamination/replacing it would risk sitting idle for so long it would have risked going out of business
@@liamshockley1856 if we end up with a radioactive melt, we halt all operations and begin a very lengthy and very expensive cleanup operation that I've heard typically takes months.
14:42 "We'll get a better instrument and continue this testing in another vidjeo " exactly what I told the Mrs the other night.
I hope it’s not made of lead...
Don't worry, she's using Warfarin
You have some of the most genuinely interesting and comedic narrations on CZcams. Don’t ever stop talking to a camera and uploading it my guy. I find it relaxing and informative. Choochin it all the way from San Diego California. Much love.
I am now slightly more prepared for surviving in post apocalypse nuclear wastelands. Thanks AvE.
Don't you mean.... wanklands?
In a uranium mine in the Colorado Rocky Mountains going into the mine lowers your radiation exposure because of the high altitude less cosmic radiation is filtered out by the atmosphere.
I learned about that the hard way in Afghanistan. Those clear skies will destroy the skin of any ginger in seconds.
@@HaqqAttak
I wasn't talking about UV but after being lightly tanned in Denver at about 5000 feet above sea level got burned to a crisp picnicking at well over 10000 feet.
@@calvingreene90 Same principle applies though. 6500 Feet where I was not a cloud in the sky, 100 degree heat.
My father worked in food packing machine hygiene engineering. He flagged early about cheap radioactive stainless steel flooding the market a while back.
That's reassuring.
There are two types of people in the world: those who have 55k of unread emails and those who have zero/
I'm only at 54,000
Never trust someone that doesn't have unread emails
@@edwardleas1619 Or a clean desktop, real or electronic.
@@TamakiComms pervert!
I’m at 580k I forgot about a forum that sent new post notifications
In the next video, I'd be interested to see what a granite surface plate reads? Are all those QC guys gonna grow an extra digit?
I live in a granite house built on a big lump of granite. RIP.
I did slab and tile for decades, I still have all ten toes and fourteen fingers..
Used to sell kitchens, they always told us to tell people that asked about radiation to tell them it's perfectly safe and well within limits.... They also told us to try and sell water filters, even though the water company says the tap water is also within safety limits...
AT the wrong end.
If you're measuring anything other than background radiation, it's good practice to keep your geiger counter in a ziploc bag, so as to avoid dust contamination.
I always used proper Marlboro filtration whilst grinding a point on a new TIG rod... The sharp point really helps cut through the lead paint.
Good work. There is nothing your loyal and reliable cigafilterate cannot save you from. Dust, particles, gases and even computer viruses and mobile phone hackers
This vid reminded me of a story I read in Science News in the 80s about contaminated recycled steel ending up in kitchen tables. I looked it up, and have to wonder where the undiscovered hot steel ultimately went. From Wiki: "December 1983 - Ciudad Juárez, Mexico. A local resident salvaged materials from a discarded radiation therapy machine containing 6,010 pellets of cobalt-60. Transport of the material led to severe contamination of his truck. When the truck was scrapped, it contaminated another 5,000 metric tonnes of steel to an estimated 300 Ci (11 TBq) of activity. This steel was used to manufacture kitchen and restaurant table legs and rebar, some of which was shipped to the US and Canada. The incident was discovered months later when a truck delivered contaminated steel building materials to the Los Alamos National Laboratory drove into the facility through a radiation monitoring station..."
There was a young lady named Eva
Who went to the ball as Godiva But a change in the lights
Showed a tear in her tights
And a low fellow present yelled BEAVER!!!
Please give him a shirt🤣
I guess she forgot a waxing to peel ‘er!
I like your regular videos hidden with many low key jokes and humor but serious videos like this really brings out your intelligence that some may miss in your videos, a good mix
i learned SO much this round AVE. thank you tons (superheavy tons)
Plot twist: Radiation was from that Chineeser detector
"As long as you filter everything thru a cigarette." That was hilarious!
For $39 you can get some uranium ore off Amazon for calibrating it. They include a piece of uranium ore and an iso cert for its specific value of outputted ionizing radiation at a specific distance. It don't know if Amazon is selling it on Amazon CA but it is available on Amazon US.
I better get that centrifuge thingy out of my cart before I go searching for this ore sample...
combatjumpmaster89 😆
Love your videos man your very knowledgeable everyone watches ya. Thanks for taking the time to make the videos
1:15 I must be living under a rock... that visual text translation was pretty darn cool lol
Damn Ave now Im worried about everything in my house! Don’t understand most of this but I was entertained none the less.
Very pleasurable learning video! More like these please. And I promise, no Thoriated Tungsten in my pockets!
Great video. I never even thought about radiation in the work place. Very useful information 👍
@11:34
Simple Alpha Decay: Atomic number drops by 2 (2 protons are ejected from nucleus).
Simple Beta Decay: Atomic number increases by 1 (A neutron becomes a proton; an electron is enjected from the nucleus)
Not trying to argue about the inverse-square law, but in your example there is wood between the meter and the welding rods, and I believe wood is a good block for alpha particles.
alpha cannot even penetrate the glass tube wall in his geiger counter. however beta and gamma do.... :)
Just stopped by to say that you know a lot of stuff ;-)
Always interesting to have a look at your vi-jeos
Hey AvE! Cool video!
I happen to work in a radiation physics lab in Sweden and have some comments regarding the instrument you used to test the steel :)
You are very unlikely to ever pick up any contamination using something like a GM tube due to it's low efficiency, you could potentially try with a larger "scintillation" detector and long integration times to try and pick up what's in there but still unlikely you would find anything. Our sister lab has a few spectrometers for very low activity determination and if you would like to send me a small piece of American steel and a small piece of Japanese steel I could ask them to analyze it for you, could be a fun exercise for a future video! (You would get activity instead of dose (in Bq/kg instead of Sieverts) but I think activity says more in this case anyway).
Happy video making!
-Mie
Wait, the box says the detector is "For testing experts around you", not for testing metals.
*You are using it wrong*
There's a few things that happen with radiation. First, there's the particle getting stopped, which is much easier for alpha particles due to their size and charge. The dead skin on the outside of the body thus is an effective shield against (most) alphas. On the other hand, neutrons are also relatively large but they can often penetrate more because they're neutral and don't get snagged by electrical fields. Second, there's the energy of the particle. Beta radiation from tritium is generally weak and it poses the same sort of risk as the alphas, but beta rays from, e.g. 32-P is much higher energy and can cause cataracts. Part of the energy story is that high-energy particles, when they collide with something (i.e. a nucleus) tend to decelerate and transfer that energy into a burst of gamma rays, which are themselves ionizing radiation. Overall it's really fascinating stuff, but nerve-wracking to work with. Radiation truly is a silent killer.
I'm curious as to what he would have had in the distance test for the rods if the wooden step wasn't blocking the meter.
radiation dangers are so over hyped by everyone. Even ingesting radioactive materials such as uranium you will die from the heavy metal poisoning long before the radiation from the material does any real damage. Its also been proven that a higher background radiation in an area is linked with lower rates of cancer. An example of this is Colorado where due to higher concentrations of natural uranium in the soil has higher levels of radiation than much of the soil around Fukushima
@@Toefoo100 I read that too (about background radiation link with cancer rates), interesting and kind of believable given the complexity of the human immune system, but just keep in mind that the findings are not causal they are correlations so it could be this is just be an illusion.
What about UV? Particularly that of what we're exposed to by that big ass ball of gas
Technicaly: having your detector on the top step of your ladder will shield the radiation source (alpha particles.) To accurately prove the point source rule, suspend it over or lay them both on the ground with the bottom of the detector facing the source. You rock dude.
Hey AvE, long time listener, first time caller. As a practicing physician I felt the need to weigh in on this: The human eye is an intensity detector. Intensity is energy per time per area. While you are correct that the energy of emitted radiation falls off as 1/r^2, so does the solid angle (area) subtended by your eye. This means the intensity is constant with distance from the source. That's why all the street lights along a road appear the same brightness, even as they get further away. Also how we can see light from stars unfathomable distances away. Everything you said about aperture control is still correct but that just sets the overall scale of intensity that you are sensitive to.
3:39 Someone's been watchin' the Heudrallic Press Tsannel!
And heeere wee go
10:17 - Good point on the PPE aspect of a cigarette (filtered, of course). I can still remember my dad working on the brakes of his car, sitting on a stool, with the brake drum at his feet and a cigarette in his mouth. He had the compressed air nozzle in hand and said to me, "Son, you don't want to breath this stuff... it's bad for you." After I move off, he closes his eyes and blasts the brake assembly, causing great clouds of brown dust to billow past him. But he was safe. Those Tareyton cigarettes had a charcoal filter, and twice the tar to catch contaminants.
No wonder they'd rather fight than switch...
@@combatjm89 - They'd rather fight than light, lol
Finally he gets on a topic that is my money-maker. I am a nuclear engineer and health physicist. UV radiation is not ionizing, by definition. GM tubes need to be filled with a gas that ionizes, but then "quenches."
µSv/h can be deceptive with a GM tube because it has to be calibrated for a certain energy of photon. Apparently the tube can be constructed to compensate, but at low photon rates, it still gives you problems due to counting statistics. If you are in the Poisson counting regime (where counting is not Gaussian), all bets are off.
Canada only requires posting at 25 µSv/h because at that rate you will over-expose a Nuclear Energy Worker at 2000 hour work-year.
Radon in your lungs isn't all that bad, it is considered a submersion dose (breathe in and breathe out). It is the Polonium daughters that are the nasty. Rn-220 has a shorter half-life than Rn-222, so doesn't really have the time to get out of your floor and into your lungs--welding rods, well that's it up to you.
I wish I had 1/100th of the knowledge you have my man.
Filtering everything through a cig: standard practice in the trades: )
Scapa Flo in the Orkney islands off mainland Scotland is where the WW1 German high seas fleet was scuttled and was the main source of high quality pre 1945 steel.
Yep that steel is used in aerospace grade radiation detectors on satalites etc.
Nice girl, Flo. Used to run off suddenly though..
Unfortunately HMS Prince of Wales and HMS Repulse are being broken up for low radiation steel too. War graves containing 840 sailors...
JNS4444 aren’t they off the coast of Malaysia? That was the attraction of Scapa Flo as the fleet was scuttled and not war graves. Although HMS Royal Oak is there and a war grave
Really interesting ! I got to get my hands on a Geiger counter to check an old military photographic lens I bought several years ago !
I’ve worked with a nucleonics level instrument or two over the years. I went on a service job because both detectors on a vessel had “failed”. It took about 10 mins to discover that the vessel was an oil and gas separator and they’d managed to fill it with radioactivity. They had readings of 80-120uSv/h around the vessel. Even the radioactivity guy was impressed with it. Luckily I’ve done with having children.
Some people that work in HVAC have discovered filtering thorough a cigarette R22 can be deadly. It decomposes the refrigerant into phosgene an incredibly toxic gas, worse of it is that it takes some time to make effect, depending on the exposure you can feel like suffocating for some minutes then you feel alright just drop into respiratory failure 24h later. Scary stuff!
Teresa Shinkansen phosgene gas was the main ingredient in mustard gas used in WWI if my memory serves me right.
I was wondering why you hadn't replied to one of my 40000 emails I have sent you.
Probably because you sent him 40000 emails...
It takes time to read though 40,000 email to find that one you're talking about.
clever
Calm down Stan
Lol he pinned every other post except yours.
Another very interesting video, thanks. My PhD in Physics wasn’t too shaken by your explanations.
As I just started a gig as a security guard at a uranium mill tailings site, I find this fascinating. Sure we locals been breathing the jeezlus stuff since birth but still comforting to understand the science behind the overcharged atoms.
I guess I will no longer hold the tungsten rods in my teeth from now on.....
@@dgray7537 hummm...
It sounded like AVE was doing just that when he was showing the safety of being one step down
nothing like the taste of tungsten in the morning....
I'll need a new stir stick for me java.
D Gray ....mercury fillings cleaned with sodium fluoride....both are very good for your health.
AvE ... you had me at "radiation" ♥
YES please keep going with this to make a part Two. ..... Great vid, wish i could go around my shop and check out whats giving out what Love your channel have been a subscriber since about 30,000. Glad to see people have finally caught onto the fact that there is no BS you get straight up truth and that you don't bother with over complicated filters and editing it's what you see is what you get real world scenario....
Hey, my guess is that the gas in the tube is Xenon. Xenon chambers are used all the time in plain medical imaging radiography for the purpose of what we call AEC; Automatic Exposure Control. The beam passes through the AEC chamber, some Xenon atoms are ionised and allow a detectable current to be produced through inner electrodes.
Photographers, and radiographers, intuitively know the inverse square law.
I learned all about the inverse square law growing weed in my closet.
You need more lamps
What does it have to do with the inverse law? I'm curious now lol
juicebox12456 energy from grow lights. Come on man, were you watching the video?!
@@Juicebox-r5k He put the lamp too far from the plant.
@@tomasbrod1533 You sure that he even put the light in the tent?
When measuring the thoriated thungsten at 14", wasnt the wood (the step of the stair) influencing the measurement?
Was actually about to buy that exact meter the other day, good to see it in the real. Another top video! Thankyou
Foods are interesting to look at too, ie bananaramas and brazils nuts.
AvE. First off, I love your videos -- keep up the amazing work! It's always a treat to break up the monotony of work for some proper shop talk.
Regarding why energy dissipates not linearly, but exponentially: I believe the unintuitiveness originates from reasoning about the world in 2D (on paper with diagrams). If you take a step back and remind ourselves that we live in a 3D world, it becomes intuitive again.
In a 2D world (point source in the middle of the page), energy emitted at the point source is preserved and radiates equally in all directions. The energy intensity falls off linearly as the circumference grows. Ignoring the constants of Circumference = 2*pi*R, the radius of the circle would dictate a linear relationship.
In a 3D world, we instead need to visualize a point-source emitting sphere (actually the surface area of a sphere instead of a circumference). The energy intensity falls exponentially as the sphere grows. Also ignoring the constants of Surface_Area = 4*pi*R^2, the radius of the sphere now dictates the energy falls of by the square-root of the distance from the point source.
I live in Cornwall in GB. Our background radiation level is nuts...7.8 mSv because of all the granite.
"it's safe unless you eat it"
that sums up how to handle most of the radioactive stuff you'll encounter
I visited your fine country for the first time last weekend!
Take the geiger counter into any antique shop and have some fun checking the green/yellow glass, orange pottery, and old clock dials. Fun stuff.
Meter dead already? Time for a boltr tear down
I'd guess situation normal, since it's driving a vacuum tube in order to do its thing. (And those are power hungry.) Just needs fresh batteries or a recharge.
He probably didn’t charge it before use. Most things with rechargeable batteries ship at lower than full charge because they have longer shelf lives in that state. Plus, it could have been sitting in a warehouse for months. That is why most say ‘charge before use’ - which may have been written somewhere in the manual, albeit in Chinese.
@Paul J Pachasa JR if all else fails, read the instructions
thorium's decay products give off beta, I have a thoriated camera lens from the late 60s (super-takumar 50/1.4 if anyone cares) that reads about 8000 cpm on the rear element, but if I put a plastic cap on it drops to like 800cpm. the radiation disrupts the structure of the glass and turns it yellow over time.
care to give a quick explanation as to why camera lenses are/were thoriated?
The first selfie filter was “photo luminescent”
@@peterjohnson9438 thorium oxide increases the refractive index of the glass. lanthanides are more common today.
@@peterjohnson9438 to reduce the ~1/2 dozen typical lens "aberrations" . . in high refractive index lens.
If you leave the lens out on the windowsill with rear element up the sunlight will clear the yellowing. Theoria Apophasis You Tube site has done several videos on thorium doped lenses.
14 inches away as the crow flies, I fucking lost it. Greatest line you've ever said.
I love your videos. I always learn something new and u always make me laugh
Is that tungsten in your pocket or are you just happy to see me. ( its tungsten and i am now sterile)😔
Steel from the Bismarck was on the voyager probes for the reason of needing low background to not throw off the Geiger on the probe
I doubt it was from the Bismark. It is a war grave, and is basically off limits. The steel likely came from another ship or big old pre-war machine.
Probably from the high sea fleet scuttled in scappa flow
Bismarck wreck wasn't located until 1989, so that can't be right. Plus at 3 miles deep, easier sources surely exist
And in thinking more, the steel was probably not from a sunken ship at all. Back in the 1960s and 70s, it was so much easier to get your pre-bomb hunks of steel from Cleveland or Pittsburgh.
Loved the elements lesson!
I love how, for the last two weeks, AvE's vidyas have been preceded by a Harbor Fraught ad on my end. YMMV.
54,000 “hot singles in your area” notifications, ah?
I think those GM tubes are filled wit some kind of inert argon gas mixture.
I don’t really know what you’re talking about, but I like the way you say it.
Thought this video was made by "neptunium"...then I noticed the good camera quality and got excited...then it was just Ave. Damn you man :D
I'm thumbing this up to ask you this question directly -- would you consider doing more videos, testing and comparing different "RADIATION DETECTORS", because damned if I can think of where to buy an over the counter Geiger counter. Seems like the type of thing the System doesn't want Joe Blow to own and operate without a license, ya know?
They're spendy, but readily available.
I think there's also an issue with comprehension and interpretation by the average consumer.
It's worth noting how long it takes someone as capable as AvE to bumblefuck his way through the numbers in pursuit of a meaningful conclusion.
In short: Nuclear physics is hard.
Having said that.. the limited availability of radiation meters does nothing to make me feel like public trust is entirely due...
I dunno what all the fuss is about with radiation I find my third arm very handy 😂
@@ChrisGilliamOffGrid Just remember to keep it in a vice 🤣
Your third arm is very handy? How many hands would you say it has?
@@igmusicandflying Enough for the girls I go out with 😂
I remember reading somewhere that the reason for the cobalt-60 in steel is actually intentional, they mix (or used to mix) it into the furnace lining, which enables you to measure the wear on the furnace by monitoring the flue gasses for radioactivity. The problem is of course that eventually all steel becomes contaminated with it due to recycling, thus making the sunken German fleet in Scapa flow valuable as a source for pre-atomic age steel. There’s also a demand for lead that was melted down more than 400 years ago, since all natural lead ore is slightly radioactive, and the last fission product takes around 400 years to decay. This caused NASA to pay for the roof replacement of the Nortre Damme cathedral at one point.
Great info. Thank you.
I thought you meant Japanese Heavy Metal, as in music. \m/,
Holy chicken scratch reader, what App is that?
You can do that through Google translate nowaday
I watch your videos every day and I don’t know how you’re this smart. Are you a machinist, scientist, engineer, mechanic, welder or outdoorsman
Great content as always 😁
AvE every time it rains wipe the hood of your car with a new Rag and use that Geiger to test, with my experience doing this eventually you going to realize that maybe you don't want to be out in the rain.
I'd be curious to see what the readings would be on top of other known radiation sources. Bananas, a lantern mantle, a smoke detector.
lo-salt (which typically contains 34.6 potassium, and 0.012% of natural potassium is potassium 40 which is radioactive)
Look up the nuclear boy scout. A 17 year old used those parts to build his own reactor. It worked so well the EPA had to declare his yard a Superfund site
Brazil nuts put Banana to shame- they're chock full of radium.
I've just realized why bananas are yellow. Thanks for the insight!
Great video AvE as always. Just one thing of note, in your test for the tungsten following the inverse square law you had the wood from the ladder betwixt the tungsten and the sensor, the wood should defiantly shield against alpha particles.
As always great vid AvE. I'm with you all the way. Just be careful how hard and fast you pull on the woollen jumper of your ordinance; if you yank on the thread too speedily, the cascade of 'nit one pearl one' will unravel and we end up with one hell of a tangle :-)
What's the function of the 2% thorium in those welding electrodes, if I may ask?
It makes them radioactive so no one will be tempted to steal them from you
Extract more electrons at lower temperature by reducing the voltage required to get them out of the metal. Thorium goes to thorium oxide at the surface, and thorium oxide is the surface coating you need. Presumably makes it easier to strike an arc and/or not melt your tungsten.
Thorium raises the melting point of tungsten. While tig welding (on Dc straight polarity) the tungsten is ground to a fine point reducing the area carring the current to the work. Without thorium the fine point of the tungsten, may not melt off, but it does create a small ball on the end of the tungsten. This can make the arc wonder, and the amperage is now spread over a larger area, making the welding puddle harder to control, and reduces the effectiveness of arc force (leading to less penetration) . When welding Aluminum they do not use thorium because they want the tungsten to create a ball on the end.
Lanthanide metals have an interesting property of being extra-eager to emit electrons, which makes them popular as coatings or additives to all kinds of electrodes. Thorium also happens to produce beta radiation (electrons) which helps even more. Makes it a little easier to strike an arc, and produces a slightly more stable arc with a lower electrode temperature.
Nowadays, thoriated electrodes have been superceded with lanthanum, cerium, or other non-radioactive additives.
A little beyondthepress is good for everyone i dig it when he says air and shit. Good channel. Those fins have lax laws on the dynamite.
I tell my non-physics buddies like so:
a wave in 1 dimension loses no amplitude because the wave front is the same size as it moves (wiggling one end of a jumprope) Amplitude(r)=A0
a wave in 2 dimensions loses intensity linearly as the circumference of a circle grows linearly with its radius. S=2*pi*r (stone thrown in a pond) A(r)=A0/r
a wave in 3 dimensions loses intensity squarely as surface area of a sphere grows squarely with its radius. S=(4/3)pi*r^2 (light/sound waves) A(r)=A0/(r^2)
Even worse, eyeballs measure light logarithmically. This means that we see the order of magnitude (what we see as twice as bright is actually 10 times brighter). So perceiving the inverse square law with eyeballs is pretty terrible since "4 times darker" barely registers.
Thanks for the vidjeo, impressed by your knowledge of my field when my field ain't your field.
If I would have had a teacher like you in high school, I'd still be stupid, but I'd feel smarter.
But what if I want mutated babies? I'll keep my electrodes wherever I see fit! Good day to you sir!
Guess I should stop using the thoriated tungsten electrodes as toothpicks then.
Affra welding instructor: “make sure you wear a respirator when sharpening thoriated tungsten” me (an intellectual): if the radiation gives me an extra arm that means I’m 1.5 times more productive which means 1.5 times the pay
We used xenon gas excited by cesium 137 for our densitometer, high voltage on xenon canister. Has photo multiplier tube at end of cannister. Gas glows and tube measured brightness. Less brightness more dense material in tube. For measuring desity of solids in a fluid thanks for covering this
In case anyone was wondering It's an inert gas that's in the tube and I dont believe any high energy UV would be ionising though I'm not too sure about that.
Is it a particale or wave? Depends how the cat measures it
how are you supposed to ask a cat stuck in a box?
@@michelguevara151 brain wave analysis?
Nice.
just to imput one little bit after that flashlight talk : im using weaker light for caveing, and i got used to that pretty well.....while cupple of my friends that used stronger light just couldnt use mine weakly little light......eye(just like rest of our body) is quite wonderful and complex and impossibile mashine
Can't wait for the next semester!
Nice lesson on physics! Don't be surprised @10:30 that your reading is background, you put a wooden board between the rods and your GM-device - that's more than enough to shade off alpha-particles, a sheet of paper would do. Thanks for sharing. Stay safe and take care.
Detectors are usually filled with nitrogen or BF3 gas (Boron Triflouride), just so ya know.
What is that
@@SBdunks3 Its a gas that when excited by an electron releases more electrons causing whats called a cascading effect (think of an avalanche) which goes on to cause a high enough pulse that its able to be detected by the detector.
pinksock133 thank you for explaining I appreciate the knowledge
pucks machine a lot better if you freeze 'em first. The heat generated from cutting/drilling gums up tools pretty wickedly fast.
You're mad! I love your videos man!
Thank you for this lesson professor AvE
If AvE is the faceless hands, does AvE wearing gloves mean that he is in disguise?
Jesus! You mean then that he's been parading around in his birthday suit all these years???
Whatta sic bastitch!!
Naw man he's not only hands, but also arms, and those arms are typically covered.
So yeah, the gloves are pretty much balaclavas.
send the broken meter over to bigclive
I used to work in a machine shop in Tulsa 20 years back, and we used to joke that the 1010 plate steel we got shipped in from Russia was salvaged from sunken nuclear subs. And by the way, I have that same Müller-Geiger counter you have there