Scientists Say
A weekly word defined, in a sentence and in context.
- Math
Scientists Say: Parabola
A parabola is a U-shaped curve, where every point along that curve is the same distance from another point and a line.
- Math
Scientists Say: Ellipse
Ellipse describes the shapes of planetary orbits around their stars and explains the wacky acoustic phenomenon of “whispering chambers.”
- Physics
Scientists Say: Explosion
Explosions happen when chemical or nuclear reactions blow out a lot of heat, noise and expanding gas.
- Brain
Scientists Say: Addiction
Recovering from addiction is hard but possible. Encouragement of loved ones can improve a person’s chances of overcoming this disease.
- Brain
Scientists Say: Connectome
A connectome is a diagram of the cellular highways that carry information in the brain.
- Ecosystems
Scientists Say: Food web
All the species in an ecosystem and the feeding relationships between them get summed up with this handy picture.
- Math
Scientists Say: Möbius strip
Möbius strips may be easy to make, but they have some pretty mind-bending properties.
- Microbes
Scientists Say: Virus
A virus must take over a living cell's machinery to make more viruses.
- Chemistry
Scientists Say: PFAS
Non-stick coatings, stain-resistant cloth and other common materials leach long-lived PFAS into soil and water.
- Earth
Scientists Say: Altitude
Altitude is used to describe heights in geography, astronomy and math.
- Space
Scientists Say: Accretion Disk
Cosmic swirls of gas, dust and plasma, accretion disks reveal the shadowy silhouettes of black holes and more.
- Physics
Scientists Say: Magnetism
Magnetism is an aspect of one of the four fundamental forces of nature: electromagnetism.
