science-junkie

ted:

5 fun facts about fireflies (aka your favorite summer bug):

Fireflies mate for a full evening and spend the whole night together. Awwww.

The lights you see from fireflies are courtship signals that males are sending to females.

But firefly romance is risky business. “Femme fatale” fireflies seduce males, and then suck their blood to get chemicals for their own survival.

Around 150 million years ago, the very first fireflies flew during the daytime and didn’t light up. Today, there are still some firefly species where only the females light up.

The chemical that makes fireflies light up first evolved as a warning sign to ward off predators — and it tastes terrible. Don’t eat the fireflies, folks. 

WATCH: The loves and lies of fireflies » 

ageofdestruction

ageofdestruction:

hannah: Surface of Mars, photographed by Mars Express, 25th November 2005.

Image runs from 32°S 201°E about 710 km due south across the Terra Sirenum highlands to 44°S 201°E. The Sirenum Fossae run across the top of the 2nd image. The 5th and 6th images show a central section of the 300 km-wide Newton Crater, including what looks like part of the central peak complex (notice dunes, dark blue, on the left hand side).

Composite of 3 visible light images for colour, and one monochrome image for detail. Colour balance is not naturalistic.

Image credit: ESA. Composite: AgeOfDestruction.

txchnologist

txchnologist:

Meet The CHIMP

Carnegie Mellon University’s Highly Intelligent Mobile Platform took third place in last December’s DARPA Robotics Challenge. The team behind the four-limbed highly capable bot will compete against others during this December’s Finals.

DARPA is sponsoring the challenge to develop robots that can help humans respond to natural and man-made disasters in human-built environments. So the machines must be able to navigate very complex, dangerous situations. 

The 50-member CMU team, called Tartan Rescue, built the five-foot-two-inch, 400-pound robot in a bit over a year. They have already been awarded $3 million by DARPA to build CHIMP, and stand to win $2 million if they win the Finals.

Read More

laboratoryequipment
laboratoryequipment:

Lightweight Materials Can Be Produced in Harsh EnvironmentsThe earth’s crust works like a pressure cooker. Minerals typically do not form under standard conditions, but at high temperatures and pressures. However, an environment of extreme heat and pressure has been considered to be absolutely unsuitable for organic molecules. Scientists at Vienna Univ. of Technology found out that under such seemingly hostile conditions, organic materials with remarkable material properties can be synthesized – for instance Kevlar, an extremely versatile high-performance material.Read more: http://www.laboratoryequipment.com/news/2014/05/lightweight-materials-can-be-produced-harsh-environments

laboratoryequipment:

Lightweight Materials Can Be Produced in Harsh Environments

The earth’s crust works like a pressure cooker. Minerals typically do not form under standard conditions, but at high temperatures and pressures. However, an environment of extreme heat and pressure has been considered to be absolutely unsuitable for organic molecules. Scientists at Vienna Univ. of Technology found out that under such seemingly hostile conditions, organic materials with remarkable material properties can be synthesized – for instance Kevlar, an extremely versatile high-performance material.

Read more: http://www.laboratoryequipment.com/news/2014/05/lightweight-materials-can-be-produced-harsh-environments