How big is a 'fragment'?

When a drinking glass falls on the floor and breaks, the shards will vary in size from large to extremely small. For the broken glass of a bus shelter, the story is different: all fragments have roughly the same size. Researchers ...

Ultrasensitive transistor for herbicide detection in water

A new polymer-based, solid-state transistor can more sensitively detect a weed killer in drinking water than existing hydrogel-based fluorescence sensor chips. The details were published in Chemistry–A European Journal.

How a toxic chromium species could form in drinking water

The water crisis in Flint, Michigan, brought much-needed attention to the problem of potentially toxic metals being released from drinking water distribution pipes when water chemistry changes. Now, researchers reporting ...

Gather Moon rocks for us, NASA urges private companies

NASA on Thursday announced it was in the market for Moon rocks, and wants to pay companies to scoop out the dirt, take a photo, and then have it ready for collection by a future mission.

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