Rachel Crowell
All Stories by Rachel Crowell

Physics
Why some icicles become scallops not spikes
The newfound — and at times quirky — shapes reflect the density of water surrounding submerged ice.

Life
From icebergs to smoke, forecasting where dangers will drift
Smoke drifts. Fish eggs float downstream. Where such drifting things end up may seem a mystery. But research can predict where they’ll end up.

Animals
Endangered or just rare? Statistics give meaning to the head counts
Whether studying tiny birds or massive whales, researchers collect a lot of data. The field of statistics helps them make sense of those data.

Math
Explainer: What is statistics?
Scientists use statistics to design studies, analyze data and evaluate uncertainty. You’ll find it in biology, climate change, medicine and more.

Space
Meet ‘Pi’ — a new Earthsized planet
Searching through data from NASA’s K2 Mission, researchers found a new planet. Some call it K2315b, others smile and refer to it as “Pi Earth.”

Math
Science is helping kids become math masters
Some researchers study video games, students’ posture and more as a means to help kids become better and more comfortable with math.

Math
Cool Jobs: The art of paper folding is inspiring science
See how bringing art and math together led to the development of roboroaches, selffolding papers and medical implants.

Computing
Math + teens + practice = a winning competition
Training for an Olympics of math helps students stretch their creativity and learn problem solving skills. If you like puzzles, you might want to check out these events.

Math
Math isn’t just for boys
The United States won the International Mathematical Olympiad in 2015 and 2016. The big question: Why wasn’t there even one girl on either year’s team?

Math
Cool Jobs: Motion by the numbers
What do car crash testers, video game creators and scientists who study athletic performance have in common? All use geometry in their cool jobs.

Math
Explainer: The basics of geometry
From points and lines to complex threedimensional shapes, our world is made of shapes and spaces. The math used to understand most of these is known as geometry.

Health & Medicine
Don’t use dinnertable spoons for liquid medicines!
Kids are safer when parents use precise tools to measure liquid medicines. Switching from teaspoons to metric tools could help, a new study finds.