Posted 5 days ago

scienceyoucanlove:

Red blood cells in a blood vessel 

Erythrocytes are biconcave in shape and are the prime oxygen-carrying cell in blood. Also they are absolutely beautiful, as seen in this electron micrograph.

Credits: Michael Webb/Visuals Unlimited, Inc

from Daily Anatomy

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currentsinbiology:

Weevil, with a extremely long snout

Zhang Chao

National Astronomical Observatories, Chinese Academy of Sciences

Beijing, China

Technique: Reflected Light  (4x)

Posted 6 days ago

Four students invented nail polish that detects date rape drugs | Science! | Geek.com

acswaclinicalsocialwork:

"As long as you remember to brush on a coat before you head out to the bar, you’ve got plenty of “test strips” at the ready. If date rape drugs are detected, the polish changes color just like the special coasters or paper strips you may already have seen. And unlike the Pd.id (which is a very clever invention in its own right), you never have to worry about running out of power if you’re testing with your nails.”

Posted 1 week ago

dendroica:

Antarctica’s ice discharge could raise sea level faster than previously thought

[The] discharge from Antarctica could contribute up to 37 centimeters to the global sea level rise within this century, a new study shows. For the first time, an international team of scientists provide a comprehensive estimate on the full range of Antarctica’s potential contribution to global sea level rise based on physical computer simulations. Led by the Potsdam Institute for Climate Impact Research, the study combines a whole set of state-of-the-art climate models and observational data with various ice models. The results reproduce Antarctica’s recent contribution to sea level rise as observed by satellites in the last two decades and show that the ice continent could become the largest contributor to sea level rise much sooner than previously thought.

"If greenhouse gases continue to rise as before, ice discharge from Antarctica could raise the global ocean by an additional 1 to 37 centimeters in this century already," says lead author Anders Levermann. "Now this is a big range — which is exactly why we call it a risk: Science needs to be clear about the uncertainty, so that decision makers at the coast and in coastal megacities like Shanghai or New York can consider the potential implications in their planning processes," says Levermann.

(via ScienceDaily)

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currentsinbiology:

compoundchem:

Honey is a food oddity in that it doesn’t spoil. Here’s the chemistry behind why, as well as an explanation of how bees make honey: http://wp.me/p4aPLT-qn

Good stuff!