How long does it take blood to circulate through the body?

On average, it takes about 45 seconds for blood to circulate from the heart, all around the body, and back to the heart again. An average adult's heart beats more than 100,000 times a day.

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Why do we call bad family members "black sheep"?

Shepherds and sheepowners of old disliked black sheep because they were less valuable on the market than white ones. A "black sheep" in the family has come to be known as a disgraceful member who shames the rest

Where did the expression "raining cats and dogs" come from?

In mythology, the cat is believed to have great influence on the weather. Witches that rode on storms were said to take the form of cats. The dog is a signal of wind, as it was an attendant of Odin, the storm king. So cats symbolize heavy rain, and dogs symbolize strong gusts of wind.

How do you treat fire ant bites?

The most commonly recommended treatment is to rub the area with ammonia on a cotton swab, and repeat as often as necessary.

How can I clean my garbage disposal?

Dump in a tray of ice cubes made from vinegar and water, then turn on the water and run the disposal as usual.

How can I get behind my radiator to paint the walls?

At your local paint or hardware store, you should be able to find paint rollers about 1 inch thick and 7 inches long, with 24-inch-long handles. These rollers are made for just this kind of tricky painting situation. Using this tool, you should be able to reach wherever you need to.

Can you explain what the rabbit and hunting for eggs has to do with Easter?

The eggs associated with Easter are fertility symbols and reflect ancient spring renewal rites. Hunting for eggs is an old western European tradition that dates back to the fifteenth century. The rabbit is another pagan fertility symbol. The rabbit was the escort of the Germanic goddess Ostara, who gave her name to a holiday that fell at the time of the vernal equinox, which then became Easter.

What determines that an earthquake is really an aftershock?

Aftershocks are earthquakes, and seismologists use the term, along with foreshocks and mainshocks, to describe the relationship between the intensity of various earthquakes. The mainshock of an earthquake sequence is generally the event with the largest magnitude. Aftershocks do not have a precise definition but are less intense than a mainshock and occur in the same area. Any subsequent earthquake in the same area, but with less magnitude, is considered an aftershock, until activity in that area returns to normal. Aftershocks are generally caused by the "readjustment" of Earth's crust in response to a larger earthquake. Aftershocks occur even after very small earthquakes.

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