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Marathon Problems
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You've all experienced the 30-minute test problem. How to tackle it?With all due respect to essay questions, math, science and engineering students can't tip-toe their way around answers. Test questions are most often multiple choice or free response… and don't let the "free" fool you – there is only one correct answer. Besides "That test sucked," the most common complaint I've heard exiting the myriad math-based tests I've taken over the years is, "You know that long problem at the end? I didn't even know where to start. SO unfair." I think what's really unfair is that person's right to use the same language as the rest of us… but I digress. Truth be told, it's safe to say we've all had our trying times with lengthy, intricate word problems w ...
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857 |
bio_man |
6 years ago |
Medical science at its best
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This is what an eye looks like after keratoprosthesis: a surgical procedure where a diseased cornea is replaced with an artificial cornea.
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4467 |
duddy |
7 years ago |
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17969 |
duddy |
7 years ago |
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5769 |
duddy |
7 years ago |
The Eshima Ohashi bridge
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The Eshima Ohashi bridge in Japan has a 6.1% grade ramp up! The bridge is also the third largest ridge bridge in the world and stretches about a mile long with a height of about 144 feet.
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25438 |
duddy |
7 years ago |
Attention paleo dieters
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A new study suggests that humans who live in industrialized societies don’t have the guts to stomach a real hunter-gatherer diet. Compared with hunter-gatherers, industrialized peoples’ intestines have fewer kinds of microbes - and are missing at least one major group of ancient bacteria.
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51356 |
duddy |
8 years ago |
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21049 |
duddy |
8 years ago |
Rockets of the world
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No, we're not referring to the candy. Humanity has done great! Here's a more intricate version of the poster above. It was created by professor Peter Alway and was published in the book Rockets of the World: ...
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13675 |
duddy |
8 years ago |
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88847 |
duddy |
8 years ago |
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10872 |
duddy |
8 years ago |
Fully charged in less than 30 seconds
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Israel-based company, StoreDot, has developed a battery made from a new material called nanodots that can charge a smartphone in just 30 seconds, and could be scaled up to charge an electric car within minutes. These special ‘nanodots’, which are artificial peptide molecules - about 2.1 nanometers in diameter - are released into the battery to rapidly increase its absorption and retention of power - almost like a sponge. ...
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5193 |
duddy |
8 years ago |
Let's go to Planet George
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"George" was named by it's discoverer in honour of George III. It wasn't popular and Uranus, the father of Saturn in Roman mythology, was eventually settled upon.
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12432 |
duddy |
8 years ago |
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6407 |
duddy |
8 years ago |
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6438 |
duddy |
8 years ago |
Beer companies are trying to get scientists drunk
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| After winning the Nobel Prize in Physics in 1922, Carlsberg gave Niels Bohr a perpetual supply of beer. The brewing company had a pipeline running from the brewery to Bohr’s house, so that he could have fresh beer on tap all the time. |
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2112 |
duddy |
8 years ago |