Basic Science Test... Oh Brother!

[AnneLine]

Not if I get it FIRST you wont, Max.  Charity begins at home.  MY home.  I'm hungry.

 

 

If you are VERy nice, I may share some of Mr. AL and my Brigettine Monks fudge with nuts with you.

 

 

 

But the Big Crunch?  

 

uh uh. NOOOO way!

Edited February 20, 2014 by AnneLine

[maximillion]

When you give it up for Lent I can have it. :woot:  :hehe:  :notworthy:  :evil:

 

 

Or I will swap for a hot spicy roll.

Edited February 20, 2014 by maximillion

[PadrePioOfPietrelcino]

8/9 (approx. 89%) And jeez, I thought the Science teacher was kidding when he said that people still thought the solar system was geocentric...

 

http://galileowaswrong.com
 

On the right side are several animations showing how everything explained by a heliocentric model is still valid in a geocentric model. Each model has strengths and weaknesses, I know a guy who creates models for tracking space junk entries...ect. In fact the specific stuff he does really only has a couple of people who understand it. He even uses a geocentric model sometimes because it can create easier calculations, other times a heliocentric model is better. Bottom line, motion is relative.

[ChristinaTherese]

Oh yeah. Tycho Brahe just made the model with the Earth staying still, the sun revolving around the earth, and all of the other planets revolving around the sun. It would work well enough for a lot of calculations. Ptolemy had a whole set of epicycles that the planets rotate on. (Look it up if you're curious, I spent long enough writing about this stuff in a paper I turned in this morning.) These models work well enough for calculations if you want to just observe the stars or whatever. The thing is that Newton (he explains a lot), Galileo (he got some neat visual evidence), and Kepler (he worked out that the planetary orbits are really elliptical) made a model with much more elegant mathematics and logic behind it. But the older models still work for most purposes.

 

Fun fact: The earth wobbles on its orbit because the point that traces an ellipse around the sun is the center of gravity between the earth and the moon, not the center of the earth.

 

ETA: I was writing a 4-page paper on heliocentrism last night that was due today for a midterm....

Edited February 20, 2014 by Christina Thérèse

[ThereseMaria]

http://galileowaswrong.com

On the right side are several animations showing how everything explained by a heliocentric model is still valid in a geocentric model. Each model has strengths and weaknesses, I know a guy who creates models for tracking space junk entries...ect. In fact the specific stuff he does really only has a couple of people who understand it. He even uses a geocentric model sometimes because it can create easier calculations, other times a heliocentric model is better. Bottom line, motion is relative.

That is a very good point... I wonder why they never talk about that in Science...? Maybe they talk about it in high school. Thank you for pointing that out!

[Didacus]

100%

Although the big bang theory is surpassed many folds over these days and physicists no longer agree that the universe began with a 'big bang'.  Actually, the Big Bang has many holes in it that was never addressed with the theory and... well, I'll stop there.  Don't want to be a rambler here.

 

100% - enough said.