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Physics, Astronomy & Cosmology / Re: What is the smallest possible thing in the universe?
« on: 22/09/2012 23:10:45 »
light
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FOUND IT :
SOURCE: https://www.facebook.com/fromquarkstoquasars
The first known proposed test was by Isaac Beeckman, who suggested in the early 1600s that a man with a stopwatch could sit atop a hill with a cannon, with a large mirror facing him approximately one mile away. Beeckman believed that when the cannon was fired, the man could start the stopwatch and stop it again after seeing the flash of light off of the mirror. Obviously this method is extremely flawed, and when a similar test was conducted by Galileo it yielded no results. Since then, we have calculated the time delay between the cannon firing and the mirror returning the flash to be approximately 11 microseconds, well below a human’s ability to distinguish a discrepancy in time.
QuoteWe are all made of atoms, at what scale do we stop being sterile and become life?
Higher order hierarchy: biochemistry to biology.
If you're asking if we have rockets, real ones? In space, no less? I'm sure you can google up a u-tube video to find it confirmed? And they all use the same 'principle', as far as I know, what Newton called 'action and reaction'
We have them already.
Up above
It is the same principle as with a garden hose. Or in your shower, the more water you apply, turning up the water pressure, the harder that nozzle will want to move the opposite way. It's a principle, or 'law'.
Hey,
I'm wondering how rockets propel themselves in space with the little burner things they have as if its a vacuum, what does it have to push against?
Thanks, Mike
Hi there
I really still not have a clue. And I'm serious.
Does the ballon picture on this link help http://howthingsfly.si.edu/propulsion/rocket-propulsion
a photon is basically pure energy, that it why it can go from particle to wave and visa versa..