Joeehan Nethor

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The best grade you can give is a conversation...

The discourse surrounding grades and grading practices has been intensifying of late.<br>Grade reform has taken a seat next to some of the other big …

Eggsplosive chemistry

Declan Fleming shows you how to capture your students’ imaginations with spectacular demonstrations<p>On the face of it, balancing equations can seem …

tetrag.com

Why Water Tastes Weird When You Leave It Out Overnight

It's not your imagination. It's chemistry.<p>Ever sip a glass of water left out overnight and think it tastes funny? There's a reason for that, Discovery News explains. Since the water was exposed to air, it absorbed some CO2 and a "tiny portion of that" was converted into carbonic acid. When carbonic …

Nanowires help produce hydrogen fuel using sunlight

You ideally want to produce clean hydrogen fuel using clean sources, and Dutch researchers have taken a big step toward making that a practical reality. They've built a solar cell that uses a grid of gallium phosphide nanowires to make hydrogen gas from water. The approach gets a useful yield of …

Clean Energy