Thread: Science 101 (and sometimes 201)

Planck's Law In physics, Planck's law describes the spectral radiance of electromagnetic radiation at all wavelengths emitted in the normal direction from a black body at temperature T. As a function of frequency ν, Planck's law is written as: I(v,T)=(2hv^3/c^2)(1/e^(hv/kT)-1) This function represents the emitted power per unit area of emitting surface, per unit solid angle, and per unit frequency. Black bodies are...

But No . The oldest and simplest astronomical observation tells us something profound about the universe. The sky is dark at night. It isn’t obvious why this should be so. If you stand in a small grove of trees and look toward the horizon, you can see patches of sky in the distance between the tree trunks. But if you stand in a large forest, your view is everywhere blocked by a “solid wall” of tree trunks....

so basically the retrograding planet steps aside as the faster moving planet makes it's way past it? or similar to how some people on the highway are speeding so, the slower driver, will pull over until it makes its way past it?

I'm all for hunting game birds but accept it's not always a viable option for many people. I don't know about the US but here heritage type breeds of free range birds are more readily available. Use the internet to search for local suppliers.

Quote: Originally Posted by Plastic Flute Do you think there is water on that "star" ? Difficult to say. It's possible that there is liquid in the space bodies. Now, water itself, the only evidence shown by the science for its existence is on Mars. Another evidence was found in one of the Saturn moons. Junior can say this better.

Quote: Originally Posted by Phobos Jesus didn't laugh... he was serious business everyday. 2/10 Could do better.

Oh no! The Krebs Cycle! I remember having to learn that in school!

Quote: Originally Posted by MSFixR I minor in making Flute happy. That's certainly an ongoing study

The idea in my last paragraph was wrong. I shouldn't post when being tired. It's true that most cone cells are for seeing red. Yet in a dark environment, when color can barely be seen, it's actually blue and green things that can be recognized better (though they appear gray). Apparently rod cells are not so good at seeing red.

Test?! I dropped out of school to avoid test. Couldn't we just look at more pictures of that hot Spaniard CB posted? I mean, who needs the periodic table? amirite? imrite.