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Brian Cox visits the world's biggest vacuum chamber - Human Universe:BBC Two
you tube ^
| 10-24-14
| bbc
Posted on 11/15/2014 6:04:26 PM PST by TurboZamboni
Your physics teacher always told you this was true. You've never seen it until now.
A lot of Newtonian physics happens in this hypothetical world where no outside forces act upon an object. But Earth isn't a vacuum, and outside forces are acting on objects all the time! Now, for the first time, you can see proof of what your physics teacher was telling you right in front of your eyes.
Brian Cox visits NASAs Space Power Facility in Ohio to see what happens when a bowling ball and a feather are dropped together under the conditions of outer space.
(Excerpt) Read more at youtube.com ...
TOPICS: Science
KEYWORDS: briancox; gravity; nasa; newton; ohio
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To: TurboZamboni
2
posted on
11/15/2014 6:06:28 PM PST
by
cripplecreek
(You can't half ass conservatism.)
To: TurboZamboni
VERY cool. Thank you for sharing this, Zam.
3
posted on
11/15/2014 6:09:03 PM PST
by
rarestia
(It's time to water the Tree of Liberty.)
To: TurboZamboni
4
posted on
11/15/2014 6:12:34 PM PST
by
Kirkwood
(Zombie Hunter)
To: TurboZamboni
How did he get inside nanzi pelousi’s head?
5
posted on
11/15/2014 6:22:29 PM PST
by
43north
(BHO: 50% black, 50% white, 100% RED.)
To: TurboZamboni
Physics ... I’ll never forget my first Physics class day in college where the professor walked over to a wall and pressed on it with most everything he had. While so doing he asked. “How much force am I applying here?”
Anyone care to answer?
To: TurboZamboni
The things I wish we could watch instead of the garbage streamed to us 24/7.
7
posted on
11/15/2014 6:38:39 PM PST
by
blackdog
(There is no such thing as healing, only a balance between destructive and constructive forces.)
To: OldNavyVet
To: OldNavyVet
How much force am I applying here?
Force = Mass x Acceleration
If he did not move the wall, from a Physics standpoint, no work was done, hence no "force".
At least, that is the answer he was looking for.
9
posted on
11/15/2014 6:41:15 PM PST
by
Rebel_Ace
(My wife told me to update my tag, so I did.)
To: 43north
10
posted on
11/15/2014 6:42:08 PM PST
by
dfwgator
(The "Fire Muschamp" tagline is back!)
To: OldNavyVet
To: TurboZamboni
I’m currently somewhere I can’t access youtube. Is this lab part of Wright/Pat’s compound.
CC
To: cripplecreek
Grrr...you beat me to it! ;-)
13
posted on
11/15/2014 6:51:47 PM PST
by
left that other site
(You shall know the Truth, and The Truth Shall Set You Free.)
To: Rebel_Ace
You got it ... Zero is the answer he was looking for. The equation he wanted to hear is F = MA.
To: TurboZamboni
Nature abhors NASAs Space Power Facility in Ohio.
15
posted on
11/15/2014 7:09:56 PM PST
by
ClearCase_guy
(Democrats have a lynch mob mentality. They always have.)
To: OldNavyVet
Anyone care to answer? ΣFx=0
ΣFy=0
ΣFz=0
ΣM=0
...assuming static equilibrium.
16
posted on
11/15/2014 7:11:03 PM PST
by
Rodamala
To: OldNavyVet
In about my third Physics class, the professor was a small nerdy guy. He was a fine instructor. But the first thing he did, and I will always remember this, was to take the chalk and make a dot on the blackboard. As he did this, he said “Let’s take an electron, and place it here, shall we?”
17
posted on
11/15/2014 7:19:45 PM PST
by
loungitude
(The truth hurts.)
To: Rebel_Ace
Force is not work. One can apply whatever force and do no work. Work is force times distance.
18
posted on
11/15/2014 7:21:44 PM PST
by
loungitude
(The truth hurts.)
To: Kirkwood
19
posted on
11/15/2014 7:47:34 PM PST
by
Weirdad
(Orthodox Americanism: It's what's good for the world! (Not communofascism!))
To: loungitude
"Force is not work. One can apply whatever force and do no work. Work is force times distance."
In my reply I said the answer the instructor was "looking for" was the F=MA, where A was zero because the wall did not move. Obviously, if you were to put a force transducer on the wall and let the teacher push on it, you would find that he is indeed exerting some pressure on the wall, but that was not what he was really after.
Work is indeed force times distance. No movement means a distance of zero. No movement means no acceleration, which means from a TEXTBOOK definition, no Force.
Like I mentioned above, an instrument would show he was exerting some pressure, he was just looking for the "pristine" application of the definitions.
20
posted on
11/15/2014 9:41:23 PM PST
by
Rebel_Ace
(My wife told me to update my tag, so I did.)
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