simloovoo — scienceisbeauty: Happy Earth Day, in honor of...

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fuckyeahexistentialism
scienceisbeauty: “Happy Earth Day, in honor of our blue planet, not green. Also a good day for everyone to remember, that science and technology achievements produce higher environmental protection, not vice versa, so more wealth imply more...
scienceisbeauty

Happy Earth Day, in honor of our blue planet, not green. Also a good day for everyone to remember, that science and technology achievements produce higher environmental protection, not vice versa, so more wealth imply more innovation and makes possible a greater investment in cleaner energies. Therefore, something that a lot of people tend to ignore, economic growth and ecological improvement go together, not confronted.

Also a great day to begin to read The Rational Optimist, by Matt Ridley who inspired my previous words.

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montycantsin-blog
The fear is that this bad ecology will become a new opiate of the people. And I’m against the ecologists’ anti-technology stance, the one that says, “we are alienated by manipulating nature, we should rediscover ourselves as natural beings”. I think we should alienate ourselves more from nature so we become aware of the utter contingency, the fragility of our natural being.
S.Zizek-New Scientist (via circulationwithinmyskull) (via montycantsin)
But what troubles me is when I hear people say that all of government is inherently bad. One of my favorite signs during the health care debate was somebody who said, ‘Keep Your Government Hands Out Of My Medicare’—which is essentially saying ‘Keep Government Out Of My Government-Run Health Care Plan.’ When our government is spoken of as some menacing, threatening foreign entity, it ignores the fact that in our democracy, government is us. We, the people—We, the people, hold in our hands the power to choose our leaders and change our laws, and shape our own destiny. Government is the police officers who are protecting our communities, and the servicemen and women who are defending us abroad. Government is the roads you drove in on and the speed limits that kept you safe. Government is what ensures that mines adhere to safety standards and that oil spills are cleaned up by the companies that caused them. Government is this extraordinary public university—a place that’s doing lifesaving research, and catalyzing economic growth, and graduating students who will change the world around them in ways big and small.
President Obama (via x0 - azspot - manspeaker - luckyshadow - kelsium)
obama government politics political science public education democracy
edificecomplex
mothernaturenetwork: “ Finca Bellavista is unlike any other place on Earth. The 350-acre site on Costa Rica’s southern coast is the first modern sustainable treehouse community and is home to houses, a community center and many other buildings— all...
mothernaturenetwork

Finca Bellavista is unlike any other place on Earth. The 350-acre site on Costa Rica’s southern coast is the first modern sustainable treehouse community and is home to houses, a community center and many other buildings— all suspended in the trees. Finca Bellavista is situated among mountains, beaches and rivers so one can imagine the breathtaking views available from a Costa Rican treetop home.
 
Every treehouse here is one-of-a-kind because each structure’s design varies based on elevations and available trees. This community is also unique because of its emphasis on sustainability. Small homes are encouraged, and all units are required to utilize rainwater collection and to be connected to the local electrical grid, which uses solar power.

See more stunning treehouses from across the globe.

simloovoo

I want a treehouse!

infinity-imagined
ageofdestruction: “ hex: Saturn’s north pole, photographed by Cassini, 3rd April 2014. The hexagon is an atmospheric vortex, the shape apparently created by interaction of winds circling the pole at different speeds. Each side of the hexagon is about...
ageofdestruction

hex: Saturn’s north pole, photographed by Cassini, 3rd April 2014.

The hexagon is an atmospheric vortex, the shape apparently created by interaction of winds circling the pole at different speeds. Each side of the hexagon is about 13,800km long, wider than Earth.

10 images taken over about a quarter of a Saturnian day, which is about 10 hours and 40 minutes long.

Image credit: NASA/JPL/SSI. Animation: AgeOfDestruction.

science: “ The Galle crater is a Martian crater that happens to look like a smiley face, due to the position of a curved mountain range. Someone made a good point about our previous post about carbon dioxide melting on Mars. At normal pressure, or...
science

The Galle crater is a Martian crater that happens to look like a smiley face, due to the position of a curved mountain range.

Someone made a good point about our previous post about carbon dioxide melting on Mars. At normal pressure, or the very low atmospheric pressure on Mars (less than 1% of the average at sea level on Earth), dry ice does not melt into liquid. Instead, it sublimes. Sublimation is a word for the phase transition where a solid bypasses liquid entirely and becomes gas. This is what gives the familiar smoke effect you get when you expose dry ice to air. You would need a pressure of over 5 atmospheres, that is five times the pressure at sea level on Earth, or about a thousand times the average pressure on Mars, to create liquid carbon dioxide. Sublimation also occurs to a certain extent to water ice on Earth.

The point at which dry ice sublimates at normal pressure is -56 celsius, which means when the temperature goes below this, the opposite transition, from gas to solid, which is called deposition, occurs. Thus “melts” was not the right word to use in the previous post. This also gives a measure of just what spring on Mars means: the dry ice cover starts melting, sorry, sublimating when the temperature goes above -56.4 C or -69.5 F. Talk about a chilly spring!

The atmosphere on Mars is about 96% carbon dioxide. About 0.1% is oxygen. For comparison, Earth’s atmosphere is about 78% nitrogen and about 21% oxygen.

The somewhat surprising fact, at least to me, that there’s only 21% oxygen in the atmosphere lead to the invention of carbogen, a mixture of oxygen and carbon dioxide. This mixture can be used to simulate the feeling of suffocation without actually suffocating, as the brain does not monitor the oxygen levels in the blood, but rather responds as if you can’t breathe if the blood carbon dioxide levels go too high.

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