In a country with economic constraints and limited resources, the bicycle culture of Havana, Cuba has both flourished for its alternative mode of transportation, and struggled as new bikes and repair parts become more and more scarce. But a handful of resourceful mechanics are still trying to keep all kinds of bikes up and running for those who rely on them daily. From Kauri Multimedia, with subtitles: Havana Bikes.
How It’s Made: Cuckoo Clocks.
If you’ve ever pretended to be on the Red Planet, you’re not alone. This is Crew 138 of the Mars Society’s Mars Desert Research Station (MDRS), a team of scientists who are researching what it would be like to live on Mars by pretending. From Wikipedia:
The crews usually consist of a mix of astronomers, physicists, biologists, geologists, engineers and the occasional journalist. Each crew member is usually assigned a role: Commander, Executive Officer (ExO), Health and Safety Officer (HSO), Crew Biologist, Crew Geologist or Chief Engineer.
In addition to cooking, cleaning, exercise, HAB maintenance, GreenHab gardening, etc, the crew has mission objectives to complete. A final mission report is written from their notes, analysis, and experiences so that future Mars astronauts and explorers can be well prepared. From National Geographic:
On the mission, the international team is working on in-the-field mapping, collecting and analyzing rock samples, measuring the payoff from exercise, and taking blood samples to monitor crew health. The team is working in mock space suits and testing work protocols indoors and outside.
The first days were largely spent learning to live and work in the Habitat, which is a round two-story structure that measures about 25 feet across.
After the crew enters full simulation, the Habitat contains all the food and water we need, as well as work and sleep quarters.
This team was based in the Utah desert, but there have been other “extraterrestrial” sites: Haughton Crater on Devon Island, and next to the Krafla Rift Volcano in Iceland. There’s also one in the works 324 miles (521 km) north of Adelaide, South Australia. For more information about the project, including volunteer requirements, check out desert.marssociety.org, and read more at National Geographic.
What Does Sound Look Like? NPR’s SkunkBear shows us the differences in fluid densities — in the form of compression waves in a gas, the air that surrounds us — thanks to the light passing through those fluids. Schlieren flow visualization and a high speed video camera make it possible.
When light travels through areas of different air density, it bends. You’ve probably noticed the way distant pavement seems to shimmer on a hot day, or the way stars appear to twinkle. You’re seeing light that has been distorted as it passes through varying air densities, which are in turn created by varying temperatures and pressures.
Schlieren Flow Visualization can be used to visually capture these changes in density: the rising heat from a candle, the turbulence around an airplane wing, the plume of a sneeze … even sound.
With tricking, hand-to-hand, free running, dancing, juggling, tumbling, aerial hoop, cyr wheel, banquine, breakdancing, hand balancing, trampoline and more we transformed this desolate yet decadent space into a thriving hub of movement and creativity.
Previously: Angelica Bongiovonni rides a Cyr wheel, juggler Yanazo wins the JJF2012 first prize, Selyna Bogino juggles basketballs with her feet while upside down (yes, it’s true), and 13 dogs skip rope (yes, seriously).
via The Awesomer.