Increasingly, The Answer is "No"
“There is really no debate about climate change in China,” said Peggy Liu, chairwoman of the Joint U.S.-China Collaboration on Clean Energy, a nonprofit group working to accelerate the greening of China. “China’s leaders are mostly engineers and scientists, so they don’t waste time questioning scientific data.” The push for green in China, she added, “is a practical discussion on health and wealth. There is no need to emphasize future consequences when people already see, eat and breathe pollution every day.”
And because runaway pollution in China means wasted lives, air, water, ecosystems and money — and wasted money means fewer jobs and more political instability — China’s leaders would never go a year (like we will) without energy legislation mandating new ways to do more with less. It’s a three-for-one shot for them. By becoming more energy efficient per unit of G.D.P., China saves money, takes the lead in the next great global industry and earns credit with the world for mitigating climate change.
I don’t understand our hesitancy to go down the path of alternative energy. It seems like a no-brainer (making it a good match for many of our politicians) — we can become less dependent on foreign sources of energy, can create jobs here, and reduce CO2 emissions. Even if the bought-and-paid-for-by-big-oil politicians don’t like the last one, surely spending money domestically instead of sending it overseas has to be good for the economy. Waiting to act only makes things worse.
Update: Related: The Brothers Koch and AB 32
Can the Republicans be the pro-business party when we need them to be the pro-business party?
Frost, Meet Leiden. Leiden, Frost.
Gray Matter: In Which I Fully Submerge My Hand in Liquid Nitrogen
My hand is like a red-hot poker to the liquid nitrogen, but an insulating layer of nitrogen gas forms- a phenomenon known as the Leiden-frost effect- keeping my hand safe and warm for a fraction of a second.
Time to Play
Clicking on the active clock shoots; the second hand is the gun.
Addendum: You have to shoot before the hand rotates through 2pi, and if you miss, you’re done.
My Pen Crashed
The pens perform an interesting trick: when Dervishaj and her classmates write in their notebooks, the pen records audio of whatever is going on around it and links the audio to the handwritten words. If her written notes are inadequate, she can tap the pen on a sentence or word, and the pen plays what the teacher was saying at that precise point.
Dervishaj showed me how it works, flipping to her page of notes on exponents and tapping a set of numbers in the middle of the page. Out of a tiny speaker in the thick, cigar-shaped pen, I could hear her teacher, Brian Licata, explaining that precise problem. “It’s like having your own little personal teacher there, with you at all times,” Dervishaj said.
Trees Come Out of the Air
Fun to Imagine 1: Jiggling Atoms
Richard Feynman, one of America’s most renowned physicists, sits down in an armchair at his Californian home to explain the physics that underpins the world around us. In this first episode, he explores the beauty of the way atoms interact with each other and reveals why fires feel hot.
edit: Link doesn’t work (anymore) outside of the US.
So, here:
Don't Do it, Mario!
Boy drops DS in gorilla cage, inadvertently creates the best photo op ever
After reportedly being unable to figure out the confusing friend code system, the gorilla knocked it around and eventually lost interest.
The boy got his system back when a trainer lured the gorilla with an apple and was able to snatch the device out of the gorilla’s hands. It then grabbed a princess and jumped up a tower of ladders and construction beams before throwing down barrels of oil.
Popping the Kids' Balloons
Minister for Home Affairs: I’d like to answer this question if I may in two ways. Firstly in my normal voice and then in a kind of silly high-pitched whine
Cocktail Party Physics: helium: a weighty question
One-fifth of the world’s helium supply is used in MRIs. The typical MRI requires superconducting magnets and, since we haven’t figured out room-temperature superconductivity yet, they require liquid nitrogen or liquid helium to keep them in the superconducting state. Most systems use a closed cycle – helium cools the magnet, warms up in the process, turns to a gas, and is re-liquefied. A typical MRI magnet, however, requires 1700-2000 liters of liquid helium. Older models have to be refilled on a timescale from months to years, while newer models advertise that they “never” need to be refilled. (I’m about to buy a system like that. We’ll see how long ‘never’ is.) MRI resolution gets better the larger the magnetic field. Larger magnetic fields require larger magnets and thus more liquid helium.
What's Cooking in the Pizza Lab?
The Pizza Lab: Bringing Neapolitan Pizza Home (aka ‘The Skillet-Broiler Method’)
Real food science — bringing the physics along with the recipe.
It’s basic thermodynamics. Air at a given temperature has less energy than stone at a given temperature. Because of this, even if both my stone and the air in my oven are at 550 degrees, the part of the pizza in contact with the stone cooks much more rapidly than the top. By the time the bottom is crisp, the top has yet to take on any significant color.
The solution to this is quite simple, and happily makes for a much cooler kitchen as well: forget preheating the oven: just use the broiler. A broiler not only cooks via hot air like the oven, but more importantly, it adds a significant amount of radiant heat to the mix, cooking the top of the pizza directly with electro-magnetic waves—a much more efficient means of heat transfer.
Full of Win
In case you haven’t heard already, Jon Stewart and Steven Colbert have announced a march in Washington, DC on October 30th. It’s not the “restore truthiness” theme (officially) I had mentioned a few days ago, being pushed by reddit. Instead it’s the Rally to Restore Sanity/March to Keep Fear Alive. I plan on going, and if any readers show up, you can’t miss me — I’ll be the guy wearing a shirt.
But the good news doesn’t stop there. The DonorsChoose donations have just surpassed $250,000, with a new goal of half a million by October 1st.