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Acupuncture

Traditional Chinese medicine theorizes that there are more than 2,000 acupuncture points on the human body, and that these connect with 12 main and 8 secondary pathways called meridians. Chinese medicine practitioners believe these meridians conduct energy, or qi (pronounced ...

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Acupuncture
Mathematics

What Are Cubes And Cube Roots?

The mathematical term 'cube' comes from the three-dimensional shape of the same name. A cube shape has three dimensions of length, width, and height, all equal and at angles of 90 to each other. Put ... Continue reading

CubesAndCubeRoots
Mathematics

Perfect Numbers

Some numbers are more special than others. According to Pythagoras (569 BC - 475 BC) and Euclid (325 BC - 265 BC), some are so special that they called them mystical or perfect numbers. The first ... Continue reading

PerfectNumbers
Engineering

The Motion of An Aircraft

We live in a world that is defined by three spatial dimensions and one time dimension. Objects move within this domain in two ways. An object translates, or changes location, from one point to ... Continue reading

TheMotionofAnAircraft
Medicine

Ultrasound In Medicine

In medical testing, ultrasound equipment is used to produce a sonogram, or a picture of organs inside the body. Ultrasound scanners do not use X-rays. They use waves of such high frequency that they ... Continue reading

UltrasoundInMedicine

The Gingerbread Man

TheGingerbreadManDid you know that gingerbread came about because of a smut disease of wheat?

Stinking smut is a disease that replaces the wheat grain with a black powder of spores that has a strong fishy odor. Flour ground from smut-contaminated wheat, although not poisonous, has a gray color and an unpleasant fishy flavor. Many years ago a baker in Europe had a supply of flour ground from smutted wheat and people would not buy bread made from this flour. Rather than discard this tainted flour and suffer a financial loss, the baker added molasses to the dough to mask the dark color and ginger to cover the fishy flavor. So, according to some authorities, gingerbread was created.

The smuts are a large group of plant diseases caused by a family of fungi related to the rust fungi (Basidiomycetes). Among the most important are the smuts attacking various cereal grains such as wheat, rice, and corn. The stinking smuts attacking wheat replace the grain with dark smut balls containing the fungus spores. These smuts are also called bunts, a name that comes from the charred, or burned, appearance of the kernels. The fish oil odor comes from a flammable chemical in the smut spores and explosions often occurred in threshing machines harvesting smutted wheat, as well as in storage bins where sparks from machinery ignited the spore masses.