Posts Tagged ‘mathematics’

Zero

December 1, 2017

Zero is not … nothing. If fact, it’s really something. A Royal Institution video, illustrated by Andrew Khosravani and narrated by Hannah Fry.

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Short link: http://wp.me/p6sb6-nBM

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There Are 177,147 Ways to Knot a Necktie

February 18, 2014

There Are 177,147 Ways to Knot a Necktie

“A small team of mathematicians, led by Mikael Vejdemo-Johansson of the of the KTH Royal Institute of Technology in Stockholm, has uploaded a paper to the preprint server arXiv describing a mathematical process they used to determine that the number of ways to tie a tie is 177,147—far more than previous research has suggested.”

— “Mathematicians calculate that there are 177,147 ways to knot a tie,” Bob Yirka, phys.org (links added)

Here in Washington DC the necktie is an integral part of a man’s traditional garb, like the blue blazer and khaki pants. Most of us pick one of two or three ways to fasten a cravat and stick with it. For us, the early morning act of knotting a tie has a reflexive, mechanical nature.

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Formula for Perfect Pizza

November 15, 2013

Fornula for Perfect Pizza

“Soggy bottoms and burnt crusts could be a thing of the past for troubled cooks who are making pizzas from scratch at home. A mathematician claims to have come up with the first-ever formula for the ‘perfectly proportioned’ pizza, taking into account factors like the ratio of topping to base.  Dr. Eugenia Cheng said pizza lovers get more topping per bite in a smaller pizza, but a more even spread of bites in a larger pizza.”

— “Formula for the perfect PIZZA revealed: Mathematician creates equation to ensure you don’t burn – or undercook – a margherita,” Sarah Griffiths, Daily Mail (links added)

Dr. Cheng is a visiting Senior Lecturer at the University of Chicago through Spring 2014, but we don’t know what she makes of Chicago Deep-Dish Pizza. Frankly, we think it’s a kind of bread bowl cheese fondue. Jon Stewart thinks it’s more like a casserole.

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Short link: http://wp.me/p6sb6-hNt

Photo by Mike Licht. Download a copy here. Creative Commons license; credit Mike Licht, NotionsCapital.com

 Comments are welcome if they are on-topic, substantive, concise, and not boring or obscene. Comments may be edited for clarity and length.

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Mega Millions Economic Stimulus

March 31, 2012

Mega Millions Economic Stimulus

Many American invested in securities that matured last night. Mega Millions Lottery tickets.

Expected payout: $640 million

Total invested: $1.5 billion

Winning numbers: 2-4-23-38-48 Mega Ball 23

Chances of winning: 1 in 176 million

You are 50 times more likely to get struck by lightning, 8,000 times more likely to be murdered, 20,000 times more likely to die in a car crash.

Lotteries: The tax on the dreams of the poor.

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Short link: http://wp.me/p6sb6-cTB

Image by Mike Licht. Download a copy here. Creative Commons license; credit Mike Licht, NotionsCapital.com

Comments are welcome if they are on-topic, substantive, concise, and not obscene. Comments may be edited for clarity and length.

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