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Calculate the number 388

NUMBERMANIA: Calculate the number 388 using numbers [6, 6, 4, 3, 70, 118] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.

Correct answers: 0

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Demetri Martin: Naming Foods

I think they named oranges before they named carrots. What are these? Those are orange: oranges. What about these? Oh, sh*t. Long pointies? Well go by shape now?

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Catalysis

In 1823, the effect of platinum as a catalyst was investigated by Johann Wolfgang Döbereiner, who found that hydrogen combined with air in the presence of platinum powder to form water, in a reacttion so vigorous that the filter paper holding the powder was charred. (It was later that the term catalysis was coined by Berzelius, in 1835.) Within a few days, on 3 Aug 1823, he invented the Döbereiner lighter process using the effect he had observed. He ignited a thin jet of hydrogen by passing it over spongy platinum in air. He designed a jar-type lighter using this method. Within three months, news of his discovery had been reported in some dozen European science journals. His lighter design was taken up by manufacturers to replace starting a fire with flint and tinder, and was in production for several decades.«

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