McKinsey: The $33 Trillion Technology Payoff
From Bits Blog NYT:
A new report from the McKinsey Global Institute, the research arm of the consulting firm, delivers a twist on the art form, and the difference is more than the timing. The 154-page report not only selects a dozen “disruptive” technologies from a candidate list of 100, but also measures their economic impact. By 2025, the 12 technologies — led by the mobile Internet, the automation of knowledge work, and the Internet of Things — have the potential to deliver economic value of up to $33 trillion a year worldwide, according to the McKinsey researchers. […]
April 8, 1933: For those who have visited London and wondered how they know their double-decker buses won’t fall over, this is apparently how they find out. Per police regulation, employees of the London General Omnibus Company put their 60-person bus to a “tilt test,” putting it on a 28-degree angle. Photo: The New York Times
Hydrogen Peroxide (H2O2) reacting with dish soap with Potassium Iodide as a catalyst.
It’s a pretty fun experiment to do, if you do it right. (In the first gif the girl screwed it up.)
Huge Asteroid to Fly Past Earth This Month
A big asteroid will cruise by Earth at the end of the month, making its closest approach to our planet for at least the next two centuries.
Image: The asteroid 1998 QE2, which is about 1.7 miles (2.7 kilometers) long, will come within 3.6 million miles (5.8 million km) of Earth on May 31, 2013. Credit: NASA/JPL-Caltech
The May 31 flyby of asteroid 1998 QE2, which is about 1.7 miles (2.7 kilometers) long, poses no threat to Earth. The space rock will come within 3.6 million miles (5.8 million km) of our planet — about 15 times the distance separating Earth and the moon, researchers say.
But the close approach will still be dramatic for astronomers, who plan to get a good look at 1998 QE2 using two huge radar telescopes — NASA’s 230-foot (70 meters) Goldstone dish in California and the 1,000-foot (305 m) Arecibo Observatory in Puerto Rico.
(hat tip r/dataisbeautiful, one of my very favorite bits of the internet)
At a public lecture in Pittsburgh in 1934, four hundred lucky students were privy to a lecture by Albert Einstein, in which the great man mathematically derived his famous mass-energy equivalence equation: E=mc2. What you see above is a photo from that lecture, and what is thought to be the only surviving photo that shows Einstein working on that derivation.
The photo was pulled from a halftone newspaper clipping by David Topper and Dwight Vincent of the University of Winnipeg, who discovered it in 2007. Sadly, everything is a bit fuzzy so you can’t really make out the famed equation itself. And even though the original article had a crisp picture of Einstein posing next to one of his blackboards, he’s next to the wrong one.
Here’s a closer look at the man and the math. If you look closely, you’ll see the mass-energy equivalence in the lower left hand corner of the blackboard on the right:
Fortunately, Topper and Vincent managed to take the blurry photo and reproduce both blackboards in their original paper. Here’s the math behind the magic, the derivation of mass-energy equivalence as presented by Albert Einstein.
In case you’re wondering why the famous equation says Δ
This is a simulation of a rotating 4 dimensional Cube, otherwise known as a Tesseract.
What you are seeing is it Rotating. It is not being distorted, reshaped, or anything like that. it is simply Rotating - It appears to be distorted because you are only seeing the ‘projection’ of it. similarly if you rotated a 3D cube infront of lamp the shadow you would see would appear to distort.
Opportunity breaks NASA’s distance record.
The Mars rover Opportunity has clocked up 22.22 miles since arriving on Mars, breaking NASA’s previous record for distance covered on another planet which was previously set in 1972 when two astronauts drove 22.21 miles on the surface of the Moon.
The international record is still held by the Russians, however. In 1973 the then Soviet Union’s remote-controlled Lunokhod 2 rover traveled 23 miles (37 kilometers) on the surface of the Moon.