4,010 results
4,010 results for: Dogs
- Math
Works in Progress
Studying math in school doesn't often give you a sense of what mathematical research is about.
- Math
Ask-a-Friend Marketplaces
If you ask enough friends, paying for answers to questions can help you get the answers you need from a social network.
- Math
Problems to Sharpen the Young
Medieval brainteasers have kept students and other people puzzled and entertained for centuries.
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- Earth
Dirty Little Secret
Recognition is growing that many communities have soils laced with asbestos, which has prodded several federal agencies to probe the hazards they might pose.
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30 Hours with Team Slime Mold
A bunch of biologists volunteer for a mad weekend of biodiversity surveying to see what's been overlooked right outside Washington, D.C.
- Humans
Books for Late Summer
The writers of Science News present wide-ranging recommendations of books for readers to pack for their late-summer vacations.
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The Predator’s Gaze
A new wave of research is trying to untangle the origins and nature of psychopathy, a personality style characterized by a lack of conscience, empathy, or guilt that attracts intense interest from the legal system.
- Humans
Science News of the Year 2006
A review of important scientific achievements reported in Science News during the year 2006.
- Math
Algebra, Philosophy, and Fun
I don’t often encounter the words “philosophy” and “fun” right next to the term “algebra.” Nowadays, these words don’t seem to fit together comfortably. However, the three terms do appear in the title of an engaging little book called Philosophy and Fun of Algebra, written by Mary Everest Boole (1832–1916) and published in 1909. I […]
- Math
Fibonacci’s Chinese Calendar
In a book completed in the year 1202, mathematician Leonardo of Pisa (also known as Fibonacci) posed the following problem: How many pairs of rabbits will be produced in a year, beginning with a single pair, if every month each pair bears a new pair that becomes productive from the second month on? The total […]
- Math
Pursuing Pursuit Curves
A pursuit curve is the path an object takes when chasing another object. Such a path might result from a fox pursuing a rabbit or a missile seeking a moving target. This set of superimposed “snapshots” shows the lines of sight at regular intervals of four “bugs” chasing one another, all moving at the same […]
