Why We Bless Sneezers

This entry is part 23 of 40 in the series Deep Questions

The origin of the “bless you” tradition is not entirely clear. The urban legend experts at Snopes.com list an impressive number of possibilities. One involves the (hopefully) mistaken belief that a human’s soul might escape through a sneeze. Saying “God bless you” wards off Satan while the soul is temporarily vulnerable. I’ve also heard that it was thought, in Biblical times, that a sneeze was an attempt to rid the body of a demon.

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What is The Longest Film Ever Made?

This entry is part 25 of 40 in the series Deep Questions

According to anecdotage.com, the aptly titled “Cure for Insomnia” is the longest film ever. It runs about 87 hours and features L.D. Groban reading a really looooong poem. Just in case you find that kind of boring, according to IMDb, the film slices in pornography and music video footage. Probably not the best “date movie.”

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If Skin Sheds, Why Do Tattoos Last Forever?

This entry is part 26 of 40 in the series Deep Questions

If human skin comes and goes like dust in the wind, why do tattoos stick around? The explanation is simple. The top layer of skin is called the epidermis. This page from A Moment of Science explains that while the epidermis is always regenerating, a tattoo needle actually penetrates through to the dermis, the second level of skin. It’s here that the tattoo makes its home for the rest of your natural life.

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Can you really count the seconds between lightening and thunder to determine how far away it is?

This entry is part 29 of 40 in the series Deep Questions

I’ve always heard the wives tell that you count the seconds between seeing a lightening flash and the sound of the thunder to figure out how far away it is. Living here in Florida, we get lots of both. So is it true or an old wives tale?

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Do earlobes have a purpose?

This entry is part 30 of 40 in the series Deep Questions

The external ear itself has the valuable function of collecting and directing sound into the inner ear. The parts of the ear you can see without a doctor’s help are called the pinna; those curvy bits conduct sound vibrations in the air down into the tympanic cavity. The shape of the pinna helps your ear and brain figure out what direction sound is coming from. But the lobule — the part hanging down — isn’t any help. In fact, some people are born lobeless because of recessive genes, and this doesn’t seem to affect their hearing.

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Is there such a thing as a Second World Country

This entry is part 32 of 40 in the series Deep Questions

Third World countries (now known as “developing nations”) are countries with a low “Human Development Index.” First World countries (like the United States, Japan, and Germany) score much higher on the HDI. A nation’s HDI is determined by its literacy rate, poverty rate, life expectancy, etc. There is indeed a Second World, though the expression isn’t exactly parallel to the other terms, and these days, few mention it.

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