Message boards :
Cafe SETI :
I learned something new (game)
Message board moderation
Previous · 1 . . . 3 · 4 · 5 · 6 · 7 · 8 · 9 . . . 23 · Next
Author | Message |
---|---|
The Simonator Send message Joined: 18 Nov 04 Posts: 5700 Credit: 3,855,702 RAC: 50 |
Not wholly unrelated, but less organic. Life on earth is the global equivalent of not storing things in the fridge. |
John McLeod VII Send message Joined: 15 Jul 99 Posts: 24806 Credit: 790,712 RAC: 0 |
|
The Simonator Send message Joined: 18 Nov 04 Posts: 5700 Credit: 3,855,702 RAC: 50 |
Think of something going the other way. Life on earth is the global equivalent of not storing things in the fridge. |
John McLeod VII Send message Joined: 15 Jul 99 Posts: 24806 Credit: 790,712 RAC: 0 |
What goes up must come down. It is still true, but it may take a while, and there is no guarantee about where it comes down. BOINC WIKI |
Julie Send message Joined: 28 Oct 09 Posts: 34053 Credit: 18,883,157 RAC: 18 |
|
The Simonator Send message Joined: 18 Nov 04 Posts: 5700 Credit: 3,855,702 RAC: 50 |
Clue: Those Magnificent Men Life on earth is the global equivalent of not storing things in the fridge. |
Julie Send message Joined: 28 Oct 09 Posts: 34053 Credit: 18,883,157 RAC: 18 |
|
LadyL Send message Joined: 14 Sep 11 Posts: 1679 Credit: 5,230,097 RAC: 0 |
Ideal angle for maximising shot distance? I'm not the Pope. I don't speak Ex Cathedra! |
James Sotherden Send message Joined: 16 May 99 Posts: 10436 Credit: 110,373,059 RAC: 54 |
Is this about Bernoulli's principle? [/quote] Old James |
The Simonator Send message Joined: 18 Nov 04 Posts: 5700 Credit: 3,855,702 RAC: 50 |
Related to Aerodynamics and Bernoulli's Life on earth is the global equivalent of not storing things in the fridge. |
Julie Send message Joined: 28 Oct 09 Posts: 34053 Credit: 18,883,157 RAC: 18 |
|
James Sotherden Send message Joined: 16 May 99 Posts: 10436 Credit: 110,373,059 RAC: 54 |
Related to Aerodynamics and Bernoulli's Is it about the lift on an airplane wing? [/quote] Old James |
The Simonator Send message Joined: 18 Nov 04 Posts: 5700 Credit: 3,855,702 RAC: 50 |
Now you're getting there. Life on earth is the global equivalent of not storing things in the fridge. |
James Sotherden Send message Joined: 16 May 99 Posts: 10436 Credit: 110,373,059 RAC: 54 |
boundary layer? [/quote] Old James |
The Simonator Send message Joined: 18 Nov 04 Posts: 5700 Credit: 3,855,702 RAC: 50 |
Think about why a wing produces lift Life on earth is the global equivalent of not storing things in the fridge. |
James Sotherden Send message Joined: 16 May 99 Posts: 10436 Credit: 110,373,059 RAC: 54 |
laminar airflow [/quote] Old James |
The Simonator Send message Joined: 18 Nov 04 Posts: 5700 Credit: 3,855,702 RAC: 50 |
Now think about what children are taught about the airflow over the wings that causes lift. (Maybe this is just UK schools, perhaps US ones have stopped teaching this since it's incorrect) Life on earth is the global equivalent of not storing things in the fridge. |
James Sotherden Send message Joined: 16 May 99 Posts: 10436 Credit: 110,373,059 RAC: 54 |
Air flows over the top of the wing faster then the bottom so it creates a vaccum there by creating lift. Is how we learned it I think, Mind you I havent been in school for 41 years now. [/quote] Old James |
The Simonator Send message Joined: 18 Nov 04 Posts: 5700 Credit: 3,855,702 RAC: 50 |
That's correct. The snippet i was looking for is that school children (certainly over here) are taught that because the air travelling over the top of the wing has further to go, it has to travel faster in order to catch up with the air below the wing. Otherwise known as the equal transit time theory. It's not true, air does flow faster over the top, thereby creating lift due to lower pressure, but it doesn't somehow have a need to catch up to the air it left behind that went under the wing, and indeed doesn't. James, you were as good as there, your turn. Life on earth is the global equivalent of not storing things in the fridge. |
James Sotherden Send message Joined: 16 May 99 Posts: 10436 Credit: 110,373,059 RAC: 54 |
Ok give me some time and I will think something up. [/quote] Old James |
©2024 University of California
SETI@home and Astropulse are funded by grants from the National Science Foundation, NASA, and donations from SETI@home volunteers. AstroPulse is funded in part by the NSF through grant AST-0307956.