Archive for the ‘science’ Category

Teaching curiosity

Friday, March 7th, 2008 by Wes

The Physics of the Familiar

“Just because something is familiar doesn’t mean you understand it. That is the common fallacy that all adults make—and no child ever does,” says Lakshminarayanan Mahadevan, England de Valpine professor of applied mathematics. Mahadevan enjoys explaining mathematically the phenomena of everyday life: practicing the old-fashioned method of scientific inquiry called natural philosophy, where one wonders about everything.
– Jonathan Shaw

Photic sneeze reflex

Saturday, February 2nd, 2008 by Wes

Looking at the Sun Can Trigger a Sneeze

>Have you ever emerged from a matinee movie, squinted into the sudden burst of sunlight and sneezed uncontrollably? Up to a third of the population will answer this question with an emphatic “Yes!” (whereas nearly everyone else scratches their head in confusion). Sneezing as the result of being exposed to a bright light—known as the photic sneeze reflex—is a genetic quirk that is still unexplained by science, even though it has intrigued some of history’s greatest minds.
– Karen Schrock

Interesting… I always blamed it on the temperature change.

What’s your formula?

Sunday, October 28th, 2007 by Wes

Edge asked a bunch of smart people “What’s your formula?” Here are the results.

Mundane Science Fiction

Saturday, September 22nd, 2007 by Wes

Take the Third Star on the Left and on til Morning: on the Mundane Science Fiction movement

I don’t believe in starships. At least not the starships that turn up so regularly in Star Trek, Star Wars, Battlestar Galactica, etc. The speed of the universe is c. Go faster than ‘c’ and something catastrophic happens: mass becomes infinite. We have no idea what that means. It’s a mathematician’s way of saying something can’t happen.

Yet mass-market SF still dreams of faster-than-light travel, through such tropes as warp drives. The Physics of Star Trek by Laurence M Krauss calculates that warp drives would consume energy equivalent to whole galaxies. This is his way of saying something can’t happen without alienating the Star Trek fans who bought the book.

If there are wormholes or portals I see no way that something can travel through them without being converted into energy or crushed by gravitational forces. This is Geoff’s way of saying the starship gets wrecked.
Geoff Ryman

Give or take

Saturday, September 15th, 2007 by Wes

Shrinking Kilogram Bewilders Physicists

Physicist Richard Davis of the International Bureau of Weights and Measures in Sevres, southwest of Paris, says the reference kilo appears to have lost 50 micrograms compared with the average of dozens of copies.

“The mystery is that they were all made of the same material, and many were made at the same time and kept under the same conditions, and yet the masses among them are slowly drifting apart,” he said. “We don’t really have a good hypothesis for it.”

A billion served

Sunday, July 29th, 2007 by Wes

He Only Saved a Billion People: on Norman Borlaug, his contribution to modern agriculture, and why most of us don’t know who he is.

It’s a trifecta much bigger and rarer than an Oscar, an Emmy and a Tony. Only five people in history have ever won the Nobel Peace Prize, the Presidential Medal of Freedom and the Congressional Gold Medal: Martin Luther King Jr., Mother Teresa, Nelson Mandela, Elie Wiesel … and Norman Borlaug.
Jonathan Alter