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You've probably heard reports about a recently-developed technological device that may help quadriplegics regain control of their limbs. The device is designed to read the quadriplegic's brain waves, and then transfer those signals to electrodes that stimulate the hand muscles. Other recent developments may yield hi-tech ways to treat other ...

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Geology

Predicting Floods

Several types of data can be collected to assist hydrologists predict when and where floods might occur. The first and most important is monitoring the amount of rainfall occurring on a realtime ... Continue reading

PredictingFloods
Astronomy

Laser Guide Stars

Did you ever wonder why we have to have the Hubble Space Telescope so high up in the Earth's orbit? Why not just make a bigger and better telescope on the surface? ... Continue reading

LaserGuideStars
Astronomy

Will the Sun Shine Forever?

The Sun is a huge nuclear furnace. It operates by converting hydrogen into helium. In this process, which is called nuclear fusion, it loses mass and produces energy according to Einstein's famous ... Continue reading

SunLifetime
Mathematics

What Are Squares And Square Roots?

The mathematical term 'square' comes from the two-dimensional shape of the same name. A square shape has the two dimensions of length and width, both exactly the same and at angles of 90 to each ... Continue reading

SquaresAndSquareRoots

Send In the Lady

LadybugsOne of the world's most recognizable insects is the ladybug. Ladybugs belong to a family of insects called Coccinellid, with about 5,000 species identified. But this little insect is more than just another pretty face, for the ladybug has been enlisted to fight in the front lines in our eternal war against insect predators. And with a reported 15% of all food and ornamental crops damaged or destroyed by insect pests, we can use all the help we can get.

Biological control is nothing new. For centuries farmers have sought the help of not only ladybugs, but praying mantis, wasps and mites as well. With recent concerns about the overuse of pesticides, there has been a renewed focus on fighting insects with their natural predators. The ladybug is well equipped for the job. In both the larval and adult stages, they prey on many soft-bodied bugs, including aphids and scales.

Like anything else though, you can have too much of a good thing. Nature is a balance, not only on a global, but also on a regional and local level. If the balance is thrown off, unexprected consequences may result. With this in mind, many farmers are using a combination of pesticides and natural insect control. And one of their favorites is the ladybug. Need help getting rid of those aphids? Send in the lady.