Colin the Mathmo
Fulltime freelance provider of outreach and enhancement in maths ... I talk a lot. About maths.
I talk about other stuff too, like ballroom dancing, juggling, unicycling, education, engineering, software, and "other things".
But mostly about maths.
I tend to follow back, but only if you have something in your profile.
If you choose an answer at random, what is your probability of being correct? A: 25% B: 50% C: 60% D: 25%
There's a fine line between numerator and denominator (and it's called a 'vinculum').
"Power corrupts. Powerpoint corrupts absolutely." -- Edward R. Tufte
Wishing a Happy Birthday to Cecilia Helena Payne-Gaposchkin.
Extraordinary woman ... simply extraordinary.
Sent to me by a round-about route. I've tracked down a link that allegedly is the original, but fortunately it's been deleted, so I don't need to include a link to Xitter.
(Edit for a typo fix)
Fabulous pass of the #ISS ... totally clear skies, magnitude around -3.6 ... brilliant to watch it sail serenely overhead.
Wanted to share the experience with a passerby:
Me: In about 30 seconds the International Space Station will come into view over there.
Him: Will it. I suppose you also believe we've landed on the Moon.
Me: Yes.
Him: What about the Van Allen Belt
Me: They went through thin parts, and they're a lot less serious than people seem to think ... about the same dose as 20 X-Rays
Him: And they knew that then, in the 60s, did they?
Me: Oh yes, they sent Apollo 6 through it to measure it.
Him: We'll just leave it at that then.
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So frustrating.
But the #ISS pass was *brilliant !!*
"You are a ghost driving a meat-coated skeleton made from stardust, riding a rock, hurtling through space. Fear nothing." -- Unknown.
"Being a student is easy. Learning requires actual work." -- William Crawford
Time for a question.
- In the expression "18÷3x2" ... if I say (regardless of anything you've ever been taught) to do the multiplication first, what happens?
I'd run this as a poll but I don't want to lead the witnesses, so to speak.
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Start with "18÷3x2"
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Do the multiplication first
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What are the steps you go through?
If you are content to do so, please boost to get out of my bubble. Thanks.

