Find number abc
[7464] Find number abc - If 3bb30 + 7abca = cca8aa find number abc. Multiple solutions may exist. - #brainteasers #math - Correct Answers: 2
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Find number abc

If 3bb30 + 7abca = cca8aa find number abc. Multiple solutions may exist.
Correct answers: 2
#brainteasers #math
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Ballpen in space

When NASA first started sending up astronauts, they quickly discovered that ballpoint pens would not work in zero gravity.
To combat the problem, NASA scientists spent a decade and $12 billion to develop a pen that writes in zero gravity, upside down, underwater, on almost any surface including glass and at temperatures ranging from below freezing to 300 C.
The Russians used a pencil.

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Times Beach dioxin

In 1982, it was announced that the soil on unpaved roads of Times Beach, Missouri, USA contained dangerous levels of poisonous dioxin and its 2,800 residents were recommended to relocate. The dioxin came from industrial waste oil sprayed on the roads for dust control in 1972-73. The Centers for Disease Control (CDC) issued the health advisory report only a few weeks after the Environmental Protection Agency (EPA) had started to sample the soil. Analyses found dioxin at levels up to 127 parts per billion. By 22 Feb 1983, the EPA pledged $33 million from the government's Superfund for hazardous chemical cleanup to purchase the Times Beach property. The city was subsequently bulldozed and decontaminated.«[Image: Aerial view of Times Beach and the Meramec River.]
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