clearscience:

The question is: why does snow appear white, even though ice (and snowflakes are ice) are see-through? It has to do with the surfaces of the snowflakes, and how many of them there are, and how randomly they are arranged inside a pile of snow. Remember the picture of the guy looking through a piece of ice and we could see his face? That’s because the light rays coming from his face go through the ice mostly unaffected, then they go into our eyes and we “see” him.

When light rays go through something they can either: transmit (go through), reflect (bounce off), or be absorbed. (There is also something called refraction, but we’re going to ignore that for now.)

In the figure above where a ray of light goes through a block of ice, we see that a little of the light might reflect off the surfaces. In the case of snow, when there are a lot of surfaces, so much reflection happens that rays of light end up going every which way, so they all get mixed together by the time they get to our eye. And “mixed together” colors are white.

thatssimplyamazing:

More at That’s Simply Amazing
thekhooll:

Soyuz
Blueprint of a Russian Soyuz rocket. Click here to view big..!

thekhooll:

Soyuz

Blueprint of a Russian Soyuz rocket. Click here to view big..!

This is just so incredible when you stop to think about it. You and your partner are together in a capsule heading to Mars. Just the two of you in space, floating in a capsule…the magnitude of that concept goes beyond epic at this point in time.http://io9.com/5987372/everything-we-know-about-dennis-titos-2018-human-mission-to-mars

thatssimplyamazing:

More at That’s Simply Amazing
inhalec0caine:

.
arquigag:

Hacienda Uayamon en Yucatán

arquigag:

Hacienda Uayamon en Yucatán

n-a-s-a:

Cluster of Galaxies RXCJ0937.9-2020 
Credit: ESO 

n-a-s-a:

Cluster of Galaxies RXCJ0937.9-2020 

Credit: ESO 

zeroing:


Iglesia de Santa Mónica