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The gold foil is 1.5 microns thick, and the gold atoms atoms are in the nanometer range... how many layers of gold atoms does the helium nuclei need to avoid to pass through without deflection? Thousands? ....Why is only one gold atom shown in the model? That doesnt look like an accurate model to me. How frequently are the alpha particles being emitted? Does gold foil that thick present an effectively solid wall of gold? If helium nuclei pass through easily, how about helium atoms? How about water? Wouldnt a pin-ball sort of behavior be expected for the alpha particles? Helium is a noble gas, but a helium with a +2 charge would be an incredibly reactive ion, desperately seeking electrons...could it react chemically?? These are the sorts of questions that anyone would wonder about. I do.

wait.... so i can get a Powerbook 170 and take out the electron gun, and make a particle accelerator?

It's the obvious result but it is so cool to actually watch it. Thanks for the video!

Did they rename the ISIS facility?

have any parts for sale or donation? i am making a hand sized model,

thanks for providing with such clear explanation :) this is easy to understand indeed!

for this enormity of a project I'd imagine that a custom digital scanner that can feed the strips through automatically would be the way to go. There are many custom cinema applications from which you could get inspiration; 8mm and 16mm film scanners that are automated. Once scanned in, I can't see why a program could not be written to sift the data and identify all the points that are most interesting.

I'm here because of my assignment

Brian badonde.

Maybe i sound stupid but.. How can there be particles of a particular charge all disposed in a container?

That's my father. He was a really intelligent guy and I am still so proud of him. <3 I say 'was'.... he passed away from cancer in 2013. But it's nice knowing that if I want to hear his voice again all I have to do is watch this video. Thank you.

nodariel Exactly! We wanna know! 3 Years and we still have no clue where this padlock is needed! Maybe that's the reason for the LHC to create a doomsday-scenario? The missing padlock? :)

The ISIS facility!?

and how much energy are you wasting to compress this hydrogen into these materials ? i thought the goal was to replace an energy source not deplete one to make the other ??? to be practical you need something that uses less energy than it is creating.

Why couldn't you use electrons instead of muons to probe your sample ?

What song is this?

I got pointed over here by Periodic Videos. I'm glad I checked it out, looks like a cool channel

I suppose the next step up from this would be to look at viruses reproducing.

Someone get the door!

Thumbs up for the royksopp tee. Lol

I really love this video! I'm interested in protein crystals but there's so little information that I can find

It's REALLY cool to be able to see this experiment-I've only seen it in books! Thank you so much!

Loved it

So, can the electron beam intensity can be controlled by laser beam intensity?

Now I know how it works - I just need to find out why I need one

Very cool. The music in the beginning: is that royalty free? Where did you get it?

Thank you!. I finally understand.

maaaan i would destroy her!!!! mmmm hmmm yes-sir-eee

Neat.

how can you suck air out without the feather sucking into the pump?

Did she do an experiment?

Oh, "BackSTAGE science"! For a moment, I thought the title was "Particle Accelerators - Backyard Science" and gave instructions on how to build a particle accelerator in one's backyard. :-) Can you say wishful thinking?

Such a fascinating world we live in

Intelligent, attractive and good with lasers ... Da' I want TWO! :D

Does that ringing bell tells us that alpha particle is detected by alpha detector..and yeah those detectors must be present @ angel of 180 Degree too.

thank u so much....

That bell is extremely annoying and distracting. After the first 2 rings, its not funny anymore.

preety gud one

If petroleum is becoming so scarce why is the US capping all our wells across the country and refusing the Canadian pipeline system? Only privet owners are pumping and Canada is exporting. My one word for petroleum is WHY?! I'm not putting down this video in any way. I wish like everything I had a home base Hydrogen producer and storage system.

More videos!!!!!!!!

great video now i belive air resistince

nice

Galileo Galilei (1564-1642) proved this very same thing in about one minute with a few metal balls and a ramp. :)

Technical terminology 101 "Reeeely Reeeely Bright" = Will melt your head.

Feather drop test proves they are really on the moon.

What are they doing behind the red window @ 5:32?

DOES ANYONE KNOW HOW THE DETECTORS WORK? ARE THEY PHOTODIODES, COVERED BY THIN ALUMINUM MYLAR?

Marvin Cervantes:"the brass can? does brass behave the same way that Lead did back in Rutherfords day?" Brass and pretty much most metal will work because it stops alpha particles. The gamma ray will mostly pass through and they will hit the detector head on. All you need to do is remove the gamma ray counts from the counter.

WACUUM CHAMBER

Why can't we just put electrolysis machines into cars and store water as fuel?