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atmospheric pressure demonstrated with a garbage bag

Interesting experiment.
Nebosukesays...

Some horrible camera work... probably a cell phone. But a very good experiment for high school science.

I remember doing an experiment for high-school physics, where our teacher challenged us to hit him with water balloons with one of those 2 person slingshots. He had figured out the trajectory equations so that he would be just out of reach.

The same professor did one where you stand on a chair and have a bowling ball hung from the ceiling held just up to your nose. Because of conservation of energy and the added friction of the rope, it wouldn't come back and hit you in the face.

ravermansays...

This is so laden with sexual energy...

Naughty co-eds dancing on tables
Put your head inside... 'ha ha ha' (Asphyxiation sex)
Pervy teacher explains how to hold his long suction pole.
'Must' be between her legs, Cup the end of it...
Be careful or it will suck onto your body or maybe rip your clothes off.
She'll have to walk around school in semi translucent plastic.
She screams and giggles as it's turned on
Vacuum packed so she looks like shes wrapped naked in cling film



>> ^zeoverlord:

True, also rule 34 still applies

Tymbrwulfsays...

>> ^residue:

I liked the part where he said the molecules of air outside of the bag are equal in number to the molecules of air inside the bag
...uh.. no.


I'd give him the benefit of the doubt and say he meant "the force/pressure of the molecules..."

harrysays...

Woah. Sudden realisation that school is now full of constantly photographing and filming kids, and that, you know.. there are probably rules about this at schools nowadays.

And as a herp derp Yurpean, I'm struck by that little American flag there. Is that a fairly normal thing in classrooms?

hamsteralliancesays...

*class bell rings* "Alright, well; If any of you are interested in delving deeper into the topic of atmospheric pressure, I have a more powerful vacuum and and an amazing latex Vacbed at home..."

rottenseedsays...

>> ^residue:

I liked the part where he said the molecules of air outside of the bag are equal in number to the molecules of air inside the bag
...uh.. no.

No that's true...it was a really really really really really really high pressure bag

Mikus_Aureliussays...

>> ^harry:
And as a herp derp Yurpean, I'm struck by that little American flag there. Is that a fairly normal thing in classrooms?


Students are lead in the pledge of allegiance (to the flag) every morning. So every room where students may start the day needs a flag.

jwraysays...

>> ^Mikus_Aurelius:

>> ^harry:
And as a herp derp Yurpean, I'm struck by that little American flag there. Is that a fairly normal thing in classrooms?

Students are lead in the pledge of allegiance (to the flag) every morning. So every room where students may start the day needs a flag.


Only in some states. The number of such states increased a bit in the post-911 jingoism. For example in Missouri we had to say the pledge daily until about 1992, then it was removed in favor of actually spending that time learning something, and then in 2002 Missouri's congress passed a law that forced my school district to do the pledge once a week. I think the pledge of allegiance is creepy because it simultaneously resembles both Nazi Germany and The Borg.

siftbotsays...

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