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4,004 results for: Dogs
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MathHow Far Away?
As you look around, you constantly make decisions about how far away something is–whether it’s a dog sniffing at a nearby tree or a friend down the street. If you were a surveyor, you could measure angles and then use high-school trigonometry to calculate distances. That’s great for drawing a map or establishing property lines, […]
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MathHow Far Away?
As you look around, you constantly make decisions about how far away something is–whether it’s a dog sniffing at a nearby tree or a friend down the street. If you were a surveyor, you could measure angles and then use high-school trigonometry to calculate distances. That’s great for drawing a map or establishing property lines, […]
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MathIce Cream Wars
A visit to the supermarket can present a shopper with a bewildering array of choices. For ice cream alone, the consumer faces a variety of brands, flavors, container sizes, and types (fat-free versus low-fat versus premium, and so on). At the same time, deciding which items to stock is a formidable problem for retailers. They […]
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ComputingGames Theory
Online games can not only entertain but also provide valuable data for researchers tackling computer-vision and other tough computational problems.
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AnimalsEgg Shell Game
Birds apparently cheat chance when it comes to laying eggs that contain sons or daughters.
By Susan Milius -
AgricultureSlugging It Out with Caffeine
Anyone who has raised tomatoes in a moist environment knows the tell-tale sign: Overnight, a ripe, juicy orb sustains a huge, oozing wound. If you arrive early, you might catch the dastardly culprit: a slug. In one test, scientists sprayed soil with dilute caffeine and then watched as slugs, like this one, made haste to […]
By Janet Raloff -
Health & MedicineA Make-Time-For-Sex Diet?
We’re slaves to our hormones. Teenagers and pregnant women are experts on that topic. Both ride an emotional roller coaster as their bodies produce vacillating amounts of sex hormones. In fact, behind the scenes of all human biology–from conception to death–a delicate interplay of hormones drives everything from the expression of our gender to regulation […]
By Janet Raloff -
Health & MedicineSelenium’s Value to Prostate Health
Prostate cancer remains the most common malignancy among U.S. men, and internationally it ranks fourth. Though few studies have offered much insight into what triggers this disease, a growing number of researchers have found evidence suggesting that dietary selenium protects men against this cancer. The seafood in this bowl of sushi can be a rich […]
By Janet Raloff -
Health & MedicineA Forget-Me-Not Dietary Supplement?
By the time most people reach their 40s, the mind has lost some of its youthful nimbleness. They learn a little more slowly. They forget more frequently. Sometimes, they don’t remember where they put the car keys or the name of that popular actor. REMEMBER THIS. Egg yolks are a rich source of choline. National […]
By Janet Raloff -
Health & MedicineThe Case of the Suspicious Hamsters
A recent outbreak of Salmonella poisoning showed that hamsters, mice, and other pocket pets can spread the dangerous bacteria, which are typically associated with chickens and eggs.
By Janet Raloff -
Health & MedicineCalories May Not Count in Life Extension
In fruit flies, shifting the concentrations of nutrients while only modestly cutting calories extends lifespan just as much as a drastic calorie cut does.
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Health & MedicineSoft Drinks as Top Calorie Culprit
Soft drinks have overtaken white bread as the main source of calories in the U.S. diet, contributing to an increasing rate of obesity in the country.