News
- Chemistry
Scientists may have an explanation for why some batteries don’t last
A long-standing idea of why lithium ion batteries die focuses on lithium movement into the cathode. Instead, hydrogen may be to blame.
- Climate
A thousands-year-old log demonstrates how burying wood can fight climate change
Burying wood can store carbon for thousands of years, according to an analysis of an ancient log unearthed in Canada.
- Archaeology
The world’s oldest cheese is now revealing some of its secrets
A DNA analysis of the kefir cheese, first found about 20 years ago on 3,600-year-old mummies in China, confirms its age and pinpoints its origins.
