How do you lathe an asymmetrical cam shaft?

December 15th, 2016 § 0 comments § permalink

Like this:

Categorized under art because that video is a work of one.

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Obama After Dark: The Precious Hours Alone

July 5th, 2016 § 0 comments § permalink

A great article in The New York Times about how Obama spends his evenings. A night owl he stays up late working alone or watching sports getting around 5-6 hours of sleep each night. I love these humanizing stories about the greatest president of our time but as someone that has had to make a lot of decisions in the past few years this part struck a cord with me.

There is time, too, for fantasy about what life would be like outside the White House. Mr. Emanuel, who is now the mayor of Chicago but remains close to the president, said he and Mr. Obama once imagined moving to Hawaii to open a T-shirt shack that sold only one size (medium) and one color (white). Their dream was that they would no longer have to make decisions.

During difficult White House meetings when no good decision seemed possible, Mr. Emanuel would sometimes turn to Mr. Obama and say, “White.” Mr. Obama would in turn say, “Medium.”

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Motion Capture Madness

June 16th, 2016 § 0 comments § permalink

2016 AICP Sponsor Reel – Dir Cut from Method Studios on Vimeo.

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Scientists Have Seen Gravitational Waves For A Second Time. Here’s Why That’s A Huge Deal

June 15th, 2016 § 1 comment § permalink

Tom Chivers writing for Buzzfeed explains why gravitational waves are such a big deal.

“Light’s always been how we do astronomy,” Professor Jo Dunkley, an astrophysicist at Oxford University who didn’t work on the experiment, told BuzzFeed News. “Everything we know about space, we’ve got from light. This can show the stuff you can’t see with light.
“This is a really big deal. It’s really exciting.”

This time it’s real

Professor Graham Woan, an astrophysicist at Glasgow University who also worked on the research, told BuzzFeed News: “There’s always a chance when you first detect something that it’s just a fluke. This proves it wasn’t. It shows that we can expect to see a lot more of these things. This is real astronomy.”


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1,000,000,000,000 Frames/Second Photography – Ramesh Raskar

March 23rd, 2016 § 0 comments § permalink

This nuts.

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To Scale: The Solar System

September 18th, 2015 § 1 comment § permalink

Pretty cool desert installation showingthe scale of our Solar System.

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Glass 3D Printing

August 21st, 2015 § 1 comment § permalink

GLASS from Mediated Matter Group (via devour).

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It may be time to give up on a new battery

August 18th, 2015 § 0 comments § permalink

These are dark days for the battery industry. While everyone has been waiting for a scientific breakthrough that would dramatically reduce the cost of storing electricity1 hope is beginning to fade. As Steve LeVine writes over at Quartz.

Entrepreneurs such as Tesla’s Elon Musk continue to tinker with off-the-shelf batteries for luxury electric cars and home power-storage systems, but industry hands seem generally to doubt that their cost will drop enough to attract a mass market any time soon. Increasingly, they are concluding that the primacy of fossil fuels will continue for decades to come, and probably into the next century.

He goes on to profile Yet-Ming Chiang, a materials-science professor at MIT, who is attempting tackling the problem from a manufacturing standpoint. Currently it takes around 24 hours to make a Lithium-Ion battery and factories range from the hundreds of millions all the way up to Tesla’s 5 Billion dollar Gigafactory. Not only does this make it incredibly hard for startups to innovate in the manufacturing space but it means that established players have little interest in rethinking the processes as it may very well wipe out the value of their factories.

It all started with cassette tapes, or their demise rather. Sony invented the lithium-ion battery in the early 90’s so they could put it in a camcorder but they died to figure out a way to quickly ramp up production.

Providence stepped in: As it happened, increasingly popular compact discs were beginning to erode the market for cassette tapes, of which Sony was also a major manufacturer. The tapes were made on long manufacturing lines that coated a film with a magnetic slurry, dried it, cut it into long strips, and rolled it up. Looking around the company, Sony’s lithium-ion managers now noticed much of this equipment, and its technicians, standing idle.
It turned out that the very same equipment could also be used for making lithium-ion batteries. These too could be made by coating a slurry on to a film, then drying and cutting it. In this case the result isn’t magnetic tape, but battery electrodes.

By and large they continue to be made the same way today.

Apart from this slow process, conventional batteries have a second problem: 35% of their interior space is filled with material that doesn’t contribute to generating electricity. That includes the binder that holds the slurry to the film; a separator that keeps the anode and cathode from shorting each other out; and a current collector that brings the charge to an electronic device.

Chiang wanted to reduce the manufacturing process to a single hour. And he wanted to shrink the space filler to almost nothing.

So far Chiang has had quite a bit of success in the lab. They have even built a refrigerator sized manufacturing platform that can spit out a battery cell in 2½ minutes. Compare that to a 400,000-square-foot facility that takes 22 hours in the drying stage alone. Currently 24m, Chiang’s company, is looking to raise another 30-50 million dollars to test the commercial viability of their new manufacturing processes.

  1. Lithium-Ion currently costs four times as much as gasoline []
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Obstructions Vanish From Images Treated With New Software From MIT, Google

August 5th, 2015 § 1 comment § permalink

Removing the reflection is pretty cool, but when they remove the foreground and show just the background my brain melted a little bit. I felt like I was watching a poorly written movie where some detective says “hey, can you enhance that reflection” and a nerd says “sure” klickity clack boom “ENHANCED!”. At which point I would normally groan and call bullshit.

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A sphere of bubbling water in zero gravity

July 30th, 2015 § 1 comment § permalink

At point point it looks like the bubbles are orbiting the sphere of water.

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