Milkwood: homesteading skills for city & country
If the Moon Were Only 1 Pixel - A tediously accurate map of the solar system
Mercury Venus Earth You Are Here Moon Mars Jupiter Io Europa Ganymede Callisto Saturn Titan Uranus Neptune Pluto(we still love you) That was about 10 million km (6,213,710 mi) just now. Pretty empty out here. Here comes our first planet... As it turns out, things are pretty far apart. We’ll be coming up on a new planet soon. Most of space is just space. Halfway home. Destination: Mars! It would take about seven months to travel this distance in a spaceship. Sit back and relax. When are we gonna be there? Seriously. This is where we might at least see some asteroids to wake us up. I spy, with my little eye... something black. If you were on a road trip, driving at 75mi/hr, it would have taken you over 500 years to get here from earth. All these distances are just averages, mind you. If you plan it right, you can actually move relatively quickly between planets. Pretty close to Jupiter now. Sorry. Lots of time to think out here... Pop the champagne! We're always trying to come up with metaphors for big numbers.
Green Capitalism: The God That Failed
(Image: Jared Rodriguez / Truthout) The results are in: No amount of "green capitalism" will be able to ensure the profound changes we must urgently make to prevent the collapse of civilization from the catastrophic impacts of global warming. The following is an updated version of an article that originally was published in the Real-World Economics Review. We consider Richard Smith's article foundational to understanding the world we live in. Given its length, several sittings or a printout may be required to complete reading. As soaring greenhouse gas (GHG) emissions drove global CO2 concentrations past 400 parts per million in May 2013, shell-shocked climate scientists warned that unless we urgently adopt "radical" measures to suppress GHG emissions (50 percent cuts in emissions by 2020, 90 percent by 2050) we're headed for an average temperature rise of 3 degrees or 4 degrees Celsius before the end of the century. "There is No Polite Way to Say That Business is Destroying the World"
If the Moon Were Only 1 Pixel - A tediously accurate map of the solar system
Mercury Venus Earth You Are Here Moon Mars Jupiter Io Europa Ganymede Callisto Saturn Titan Uranus Neptune Pluto (we still love you) That was about 10 million km (6,213,710 mi) just now. Pretty empty out here. Here comes our first planet... As it turns out, things are pretty far apart. We’ll be coming up on a new planet soon. Most of space is just space. Halfway home. Destination: Mars! It would take about seven months to travel this distance in a spaceship. Sit back and relax. When are we gonna be there? Seriously. This is where we might at least see some asteroids to wake us up. I spy, with my little eye... something black. If you were on a road trip, driving at 75mi/hr, it would have taken you over 500 years to get here from earth. All these distances are just averages, mind you. If you plan it right, you can actually move relatively quickly between planets. Pretty close to Jupiter now. Sorry. Lots of time to think out here... Pop the champagne! We're always trying to come up with metaphors for big numbers.
www.morgenwitzel.com/blog/archive/2013/12/
13rd December 2013 More unintended consequences Here is another example of the law of unintended consequences (see the post from 10 December). The National Library of Norway has announced that it intends to digitise More... 10th December 2013 The law of unintended consequences The law of unintended consequences is exactly what the title suggests: decisions and actions have consequences which were not intended by the person, or people, More... 6th December 2013 India's Next Generation A friendly Indian journalist wrote to me earlier today, asking me to comment on the fact that it is now a year since Cyrus Mistry took over as head of the Tata Group. 2nd December 2013 ‘We need more non-action!’
5 Everyday Things That Go Totally Nuts in Zero Gravity
Humanity has a strange tendency to think of physics in terms of how it operates on Earth, despite the fact that our little ball of mud amounts to little more than a speck of roach poop in the grand scheme of things. If you really want to see how physics works, you need to go zero gravity, man. Zero-G environments are totally a part of our physical universe, and an overwhelmingly dominating part at that. This means ye olde laws of physics are totally at work in there, too. They just like to operate like a goddamn maniac. #5. Photodisc/Photodisc/Getty Images Before reading further, take a moment to go light something in your house on fire. Via hckrwolfFwwwooooooooffff! Yep, that there is a space flame. Via Reclusland.comLeft: Normal flame. That flame shape you're used to can only happen because the fire forces hot air to rise upward. Via Discovery.comHow astronauts resist the temptation to start mage duels the second their spacecraft leaves the atmosphere, we'll never know. Via Doublemazaa
Water Sensitive Urban Design
WATCH: A bowling ball and feather fall in world's biggest vacuum chamber
You probably already know how this one ends, but that doesn't make watching it play out any less spectacular. [optional caption text here] Image: [name here]/Shutterstock The combination of bowling ball and feather is the perfect way to demonstrate air resistance, also known as drag. British physicist Brian Cox wanted to see this primary-school problem play out in a vacuum, where there is zero air resistance to mess with the results. When not in use, the chamber contains around 30 tonnes of air, but when it’s turned on, all but around 2 grams of air are sucked out to create an artificial vacuum.
Quarkology - HSC Physics and Chemistry
The XKCD Guide to the Universe’s Most Bizarre Physics
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