December 2024

Free Articles

FEATURE

It's a Small, Small World: The Chemistry of Microchip Fabrication

By Brian Rohrig
The first computer occupied the equivalent square footage of a small three-bedroom house—now we carry a more powerful computer in our pocket. Semiconductor innovations made the microchip possible.


OPEN FOR DISCUSSION

The Role of Journalism in the Scientific Method

We usually think of journalists as bringing us news about politics and world events, but science journalism plays an underappreciated role in the scientific process.


CHEMISTRY IN PERSON

Scissor-Kicks on Titan

Ashley L. Walker studies the atmospheres of Uranus and Neptune. As a graduate student, she works with her faculty advisers to figure out the chemistry and physics of the clouds that cover these giant planets.

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LED light strip

From Blue to Bright

By Christopher Iatauro
Light emitting diodes (LEDs) are a fashion statement, room accessory, and a low-energy light source. The discovery of the blue LED light was pivotal. Discover the chemistry behind LED light strings.

Teacher's Guide (DOC)   Teacher's Guide (Google Doc)   


Recycling bins

Plastic or Metal?

By Danielle Sedbrook
Looking for the most environmentally friendly products? Should you choose metal or plastic? The answer is complicated. Recycling materials, whether plastic or metal, suffers from similar issues: diversity and availability. Perhaps the answer lies beyond chemistry.

Teacher's Guide (DOC)   Teacher's Guide (Google Doc)


Woman practicing yoga surrounded by air/smoke swirls

Skin Emissions

By Xiaozhi Lim
We emit volatile organic chemicals naturally from our skin. Chemists are developing technology to sense and identify these skin emissions. Could a wearable scent detector be the next app for our smartwatches?

Teacher's Guide (DOC)   Teacher's Guide (Google Doc)