vadur:

the torres by Tim Moss on Flickr.

fornicating:

Fresno County Wildflowers 2-05-2006 by Sierra Sunrise

woodendreams:

(by Floris van Breugel)

h4ilstorm:

Lae cassowary (by J W CRUX)

Study: Climate change will cut habitats by 2080: Climate change leaves many plants and animals only a few decades to adjust. A study warns that losses of living space will afflict plants and animals worldwide, raising extinction worries @ USA Today

wild-placephotography:

Panda claws by Wild Place Photography

(Do not remove credit, this photos belongs to Wild Place)

straange-daze:

i-am-desert-flower:

kmanovaere:

kitsunebaba:

g00kie-m0nster:

peacefulvibes:

stonefreedreamer:

This had nothing to do with smoking weed or getting high. This is about our earth. This is about our future. This is about the future of our race as humans. 

I am all for hemp. Hemp is the cure for so many things wrong in this world. Hemp can make such a difference!

kitsunebaba, look what appeared on my dash :D

 IT USES 5 TIMES LESS WATER THAN COTTON

AND PRODUCES LIKE 10 TIMES MORE

AND IT HAS TWO SEASONS IN ONE YEAR AND IT IS STRONGER

WHEN YOU MAKE IT INTO PAPER IT DOESN’T YELLOW

YOU CAN MAKE FREAKING CONCRETE OUT OF IT THAT GETS HARDER OVER TIME AND BREATHES SO IT DOESN’T CRACK

THE OIL IS SUPER GOOD FOR YOU

IT WAS THE ORIGINAL FUEL FOR CARS

YOU CANNOT GET HIGH FROM IT!!!! 

 THEY USED TO MAKE SAILS OUT OF IT

YOU CAN USE 80% OF IT FOR PAPER RATHER THEN 20-30% FOR TREES

IT WAS ONLY BOYCOTTED BECAUSE THE COTTON INDUSTRY WAS GOING DOWNHILL

Hemp is a victim of vested interests versus common sense. It would be nice to change that.

http://kmanovaere.tumblr.com/

^^^^^^^^^^^^^^^^^^^^^^^^^^^^

We really need to start using this were going to run out of resources soon.

infinitylooper:

Deviating from the usual path of astronomy, this is Professor Yi Cui holding a flask of the newly developed lithium-polysulfide battery prototype. Current flow batteries cannot handle the occasional surges of power that accompanies many solar and wind grids. This new type, with a few modifiers, could be a cheap and efficient ways of withstanding these fluctuations.

Image Source: http://images.sciencedaily.com/2013/04/130424140603-large.jpg

Article: http://www.sciencedaily.com/releases/2013/04/130424140603.htm

infinitylooper:

The effect shown in the gif is called gravitational lensing.

What is gravitational lensing?

Gravitational lensing is the effect seen when an object behind a massive object is in the line of sight with the earth. For example:

Earth ————>Massive Object—————->Far away object

When we try looking at the far away object, the massive object bends space-time around it, causing the light rays from the far away object to travel in a curved path around into our line of sight.

As a result of this, we can often see the far away object magnified which helps astronomers understand the early universe. The gif shows a far away galaxy being gravitationally lensed by a closer black hole.

Some cute applications of computability theory:

1. We now know that, if an alien with enormous computational powers came to Earth, it could prove to us whether White or Black has the winning strategy in chess. To be convinced of the proof, we would not have to trust the alien or its exotic technology, and we would not have to spend billions of years analyzing one move sequence after another. We’d simply have to engage in a short conversation with the alien about the sums of certain polynomials over finite fields.
2. There’s a finite (and not unimaginably-large) set of boxes, such that if we knew how to pack those boxes into the trunk of your car, then we’d also know a proof of the Riemann Hypothesis. Indeed, every formal proof of the Riemann Hypothesis with at most (say) a million symbols corresponds to some way of packing the boxes into your trunk, and vice versa. Furthermore, a list of the boxes and their dimensions can be feasibly written down.
3. Supposing you do prove the Riemann Hypothesis, it’s possible to convince someone of that fact, without revealing anything other than the fact that you proved it. It’s also possible to write the proof down in such a way that someone else could verify it, with very high confidence, having only seen 10 or 20 bits of the proof.
4. If every second or so your computer’s memory were wiped completely clean, except for the input data; the clock; a static, unchanging program; and a counter that could only be set to 1, 2, 3, 4, or 5, it would still be possible (given enough time) to carry out an arbitrarily long computation — just as if the memory weren’t being wiped clean each second. This is almost certainly not true if the counter could only be set to 1, 2, 3, or 4. The reason 5 is special here is pretty much the same reason it’s special in Galois’ proof of the unsolvability of the quintic equation.

world-shaker:

EVERY. TIME.