Chemistry
- Chemistry
Radiometric dating puts pieces of the past in context. Here’s how
Carbon dating and other techniques answer essential questions about human history, our planet and the solar system.
- Chemistry
Ink analysis reveals Marie Antoinette’s letters’ hidden words and who censored them
Chemical analyses of letters written by Marie Antoinette solve a French Revolution mystery: Who censored the queen?
- Chemistry
Luis Miramontes helped enable the sexual revolution. Why isn’t he better known?
By synthesizing norethindrone, one of the first active ingredients in birth control pills, Luis Miramontes helped usher in the sexual revolution.
- Environment
50 years ago, chemical pollutants were linked to odd animal behavior
Fifty years after studies hinted that pollution interferes with how aquatic creatures communicate, scientists are still unraveling its myriad effects.
- Chemistry
A pinch of saturated fat could make tempering chocolate a breeze
Adding a small amount of fatty molecules to cocoa butter could simplify the labor-intensive tempering process to create melt-in-your-mouth chocolate.
- Chemistry
50 years ago, scientists developed self-destructing plastic
In the 1970s, scientists developed plastic that could quickly break down when exposed to light. But that didn’t solve the world’s pollution problems.
- Chemistry
Many cosmetics contain hidden, potentially dangerous ‘forever chemicals’
Scientists found signs of long-lasting PFAS compounds in about half of tested makeup products, especially waterproof mascaras and lipsticks.
- Chemistry
A sweet father-son bond inspires tasty new molecule models
New edible models of proteins could spark students’ interest in the world of chemistry, especially students who are blind.
- Agriculture
Nanoscale nutrients can protect plants from fungal diseases
Applied to the shoots, nutrients served in tiny metallic packages are absorbed more efficiently, strengthening plants’ defenses against fungal attack.
- Earth
Lightning may be an important source of air-cleaning chemicals
Airplane observations show that thunderstorms can directly generate vast quantities of atmosphere-cleansing chemicals called oxidants.
- Chemistry
A new technique could make some plastic trash compostable at home
Embedding enzymes inside biodegradable plastics makes them truly compostable, which could mitigate the plastic waste problem.
- Physics
Can room-temperature superconductors work without extreme pressure?
The next generation of materials that conduct electricity with no resistance could shrug off the need for high pressure and low temperatures.
