Cooling unplugged
There are alternatives to the ubiquitous air conditioner.
explanation
Attention to detail
Learning the kingdoms
Domesticated plants
The earliest servant
The first plant pressed into human service is probably not the one you’re thinking of.
A difficult problem
A legacy
Unimportant history
Obscure biography
A book about someone we’d never heard of turns out to be unexpectedly interesting.
The student’s load
Getting quieter
A small triumph
We note an important advance in technology that has happened without fanfare.