- (CEFET PR)
“While typical wastewater treatment plants don’t eliminate the drugs, activated charcoal filtration does.”
The best translation for the underlined word in the sentence above is:
a) indústrias.
b) plantas.
c) projetos.
d) usinas.
e) mapeamentos.
EINSTEIN’S HOT TIME
By Steve Mirsky
The well-known quote from Albert Einstein in his attempt to make relativity more accessible to the layperson goes: “When a man sits with a pretty girl for an hour, it seems like a minute. But let him sit on a hot stove for a minute and it’s longer than any hour. That’s relativity.”
Some serendipitous research shows that the pretty girl / hot stove line turns out to be more than just a clever thought. Recently I came across the statement in its original form.
Amazingly the pretty girl / hot stove quote is actually the abstract from a short paper written by Einstein that appeared in the Journal of Exothermic Science and Technology in 1938. Apparently, the great theoretician tried his hand and other body parts, at experimentation to derive his simple explanation for relativity.
(Adapted from SCIENTIFIC AMERICAN, SEPTEMBER, 2002)
