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Month: September 2015
Using an imaging spectrometer on MRO, researchers detected signatures of hydrated minerals on slopes where mysterious streaks are seen on the Red Planet. These darkish streaks appear to ebb and flow over time. They darken and appear to flow down steep slopes during warm seasons, and then fade in cooler seasons. They appear in several locations on Mars when temperatures are above minus 10 degrees Fahrenheit (minus 23 Celsius), and disappear at colder times.
https://www.nasa.gov/press-release/nasa-confirms-evidence-that-liquid-water-flows-on-today-s-mars
https://www.youtube.com/watch?v=-iJP7DFt6AU
https://www.youtube.com/watch?v=0FGauefqGuw
a plant-hopping insect found in gardens across Europe – has hind-leg joints with curved cog-like strips of opposing ‘teeth’ that intermesh, rotating like mechanical gears to synchronise the animal’s legs when it launches into a jump.
http://phys.org/news/2013-09-functioning-mechanical-gears-nature.html
Hands on with Carbon Nano Tubes
https://www.youtube.com/watch?v=s-0xVQcfoXM
Jump to the 30 minute mark to see a remarkable demo of carbon nano tubes.
Amazing science film clips
Check out the water droplet orbiting a charge knitting needle in space at the 36 second mark.