Mr Spinkles
Mr
Anyone who doesn't agree is a nerd. :jam:
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Physics is Awesome
- Thread starter Mr Spinkles
- Start date
Malus 12:9
Temporarily Deactive.
I'm a nerd, but I agree with you.....
Bennettresearch
Politically Incorrect
Hey Spinks,Mr Spinkles said:
Not another string theorist! Oh no. Eleven dimensions, and utter chaos at the subatomic level. These people have made me afraid to walk out my door because the earth could disappear under my feet! Physicists only want to make me insecure in my own little world.
Oh, by the way, have they invented anti-gravity yet? That would be neat.
Mr Spinkles
Mr
You need a physics class to learn that if you move relative to someone else, time slows down. Without physics, no one would have ever figured out that time dilation does happen. Or that baseballs have a wavelength. Or that the iron atoms in your blood were born in a massive stellar explosion millions of years ago.Aqualung said:
Physics is awesome, just admit it.
Aqualung
Tasty
Who cares that time slows down! And does the fact that I suddenly now know that baseballs have wavelength make me have to change my hitting? Or does the iron in my blood suddenly start acting differently know that I know it, and so I have to make adjustments? Of course not. Sure, physics is good for some people to know, so they can make discoveries. But I have no need for it.Mr Spinkles said:You need a physics class to learn that if you move relative to someone else, time slows down. Without physics, no one would have ever figured out that time dilation does happen. Or that baseballs have a wavelength. Or that the iron atoms in your blood were born in a massive stellar explosion millions of years ago.
Physics is awesome, just admit it.
Druidus
Keeper of the Grove
Actually (correct me if I'm wrong, Spinks), knowing something about an object creates a great deal of difference, according to quantum physics.
Aqua, in physics, yes, we look at the how of things. How this happens, how that happens, whatever. We don't look at the why, because that's for philosophy, and no one can find an answer to the why. I care a lot about time dilation, because I wrote a little bit of a theory on it (and I have a possible mathematical equation extrapolated from the theory as well).
There is a joy in suddenly understanding the how of things around you. Physics is not only abstract, but practical too. There are a great many reasons to learn physics, not the least of which being a deeper understanding of the world around you.
Mr Spinkles
Mr
*raises hand*Aqualung said:
If you were using a tiny baseball and a tiny bat, it might. The catcher might have problems catching the baseball as it diffracts and interferes with itself, and the umpire would have difficulty determining whether or not the ball went through the strike zone.Aqualung said:
Don't be so sure. Experiment has shown that the act of observing a phenomenon affects how it behaves. If you pass photons of light through a double slit, they form a double slit diffraction pattern....but if you start keeping track of which slit the photons went through, they form single slit diffraction patterns. Nature knowns when it's being watched.Aqualung said:
To each his/her own.Aqualung said:
NERD!
That's right, Dru. Judging by your appreciation for physics, I'm going to go ahead and add you to my list of very very cool people.Dru said:
Mike182
Flaming Queer
ah yes, the awesome physics, the same awesome physics in fact that tells us how and why the bumble bee flys ...... oh wait, the bumble bee defies every law of aero-dynamics we have - and yet it still flys! darn, bit of a blow to physics really isn't it!Mr Spinkles said:You need a physics class to learn that if you move relative to someone else, time slows down. Without physics, no one would have ever figured out that time dilation does happen. Or that baseballs have a wavelength. Or that the iron atoms in your blood were born in a massive stellar explosion millions of years ago.
Physics is awesome, just admit it.
nah, do philosophy or theology, they are the best subjects in the history of, well, subjects
C_P
Apotheosis
Member
I enjoy discussing physics, along with philosophy and theology amongst others. Corrupt, that mysetery has been solved, but there are other riddles out there, thankfully scientists dont claim to have a complete understanding of the world.
One of the mechanisms is called "delayed stall," which Dickinson and others had identified earlier as an important lift mechanism. This occurs as the insect sweeps its wings forward at a high angle of attack, that is, cutting through the air at a steeper angle than that of a typical airplane wing. A fixed wing, like that of an airplane or bird, would stall at such a high angle, losing lift, suffering increased drag and ending in disaster.
Under some conditions, however, a structure called a "leading edge vortex" can form and sit on the top surface of the wing to create lift. The Concorde supersonic airplane takes advantage of this vortex during takeoff, as explained by Charles Ellington at Cambridge University.
About five years ago, when insects were found to use delayed stall, some thought this was the answer to the question of how insects fly, Dickinson said. Subsequent measurements showed that delayed stall wasn't the complete answer, however.
Dickinson now has discovered two other techniques used by insects. One is called "rotational circulation" -- basically, as the insect wing nears the end of its stroke, it rotates backward, creating backspin. Just as backspin lifts a tennis ball, so it can provide extra lift for an insect.
Finally, a mechanism called "wake capture" gains an insect added lift by recapturing the energy lost in the wake. As the wing moves through the air, it leaves whirlpools or vortices of air behind it. If the insect rotates its wing before starting the return stroke, the wing can intersect its own wake and capture extra oomph to keep the insect aloft.
-Excerpt from http://www.berkeley.edu/news/media/releases/99legacy/6-15-1999.html
One of the mechanisms is called "delayed stall," which Dickinson and others had identified earlier as an important lift mechanism. This occurs as the insect sweeps its wings forward at a high angle of attack, that is, cutting through the air at a steeper angle than that of a typical airplane wing. A fixed wing, like that of an airplane or bird, would stall at such a high angle, losing lift, suffering increased drag and ending in disaster.
Under some conditions, however, a structure called a "leading edge vortex" can form and sit on the top surface of the wing to create lift. The Concorde supersonic airplane takes advantage of this vortex during takeoff, as explained by Charles Ellington at Cambridge University.
About five years ago, when insects were found to use delayed stall, some thought this was the answer to the question of how insects fly, Dickinson said. Subsequent measurements showed that delayed stall wasn't the complete answer, however.
Dickinson now has discovered two other techniques used by insects. One is called "rotational circulation" -- basically, as the insect wing nears the end of its stroke, it rotates backward, creating backspin. Just as backspin lifts a tennis ball, so it can provide extra lift for an insect.
Finally, a mechanism called "wake capture" gains an insect added lift by recapturing the energy lost in the wake. As the wing moves through the air, it leaves whirlpools or vortices of air behind it. If the insect rotates its wing before starting the return stroke, the wing can intersect its own wake and capture extra oomph to keep the insect aloft.
-Excerpt from http://www.berkeley.edu/news/media/releases/99legacy/6-15-1999.html
standing_on_one_foot
Well-Known Member
No, they don't defy every law of aerodynamics we have. Urban legend. They can't glide, that's true, but because their wings move in a certain way, they can generates enough lift to fly. It only doesn't work it you assume a bee flies like an airplane.corrupt_preist said:
Anyhoo, yes, physics is pretty awesome. I like understanding as much as I can (which is, admittedly, not a lot, but still) about how the universe works. Some of it's pretty cool stuff.