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Calvinball

Watching Layer Tennis last Friday, commentator John Gruber compared the competition to Calvinball, which brought me back to my childhood, reading the Sunday funnies. Remember Calvinball? In my book, it's the ultimate Nomic game -- a game in which the rules change and evolve as part of gameplay.

Back in April, I wrote about another Nomic game, 1000 Blank White Cards. 1KBWC (as it's, uh, less commonly known) is a card game in which players make up their own cards, which may implement new rules (like "you must hold 40 cards in order to win" or the less-fun "holder of THIS CARD wins"). Calvinball is similar, but a bit more active -- it is classically played outdoors -- and more devious: according to the official rules, section 1.2, new rules may be declared either audibly or silently. The other major difference is that Calvinball involves a ball (which, according to section 2.2, "may be a soccerball, volleyball, or any other reasonable or unreasonable, spherical or non-spherical object").

I think I'm a Calvinball fan because it's a game of wit, rather than one of physical prowess. (Also you get to wear a mask, and that sounds pretty fun.) I certainly had my share of childhood games which devolved into arguments over who shot whom, but of course we also displayed this Calvin-like behavior of devising new rules. That's what kids do. (I recall one particularly egregious example: during a Monopoly game I once declared, "I'm allowed to take $500 bills because I'm the banker. That's what banks do, they have lots of money.")

Prospective Calvinball players should consult the official rules, read the Wikipedia sub-entry on Calvinball (which is admirably full of citations), or learn more about Nomic.

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Cell Free Technology
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technology
This Pixel Kit Will Let You Play Tetris With Jellyfish DNA
Cell Free Technology
Cell Free Technology

Forget playing Tetris on your phone. Now you can play it with jellyfish DNA. Bixels is a DIY game kit that lets you code your own games using synthetic biology, lighting up a digital display with the help of DNA.

Its 8-by-8 pixel grid is programmed to turn on with the help of the same protein that makes jellyfish glow, called green fluorescent protein (GFP). But you can program it to do more than just passively shine. You can use your phone and the associated app to excite Bixels' fluorescent proteins and make them glow at different frequencies, producing red, blue, and green colors. Essentially, you can program it like you would any computer, but instead of electronics powering the system, it's DNA.

Two blue boxes hold Bixel pixel grids.

Researchers use green fluorescent protein all the time in lab experiments as an imaging agent to illuminate biological processes for study. With Bixels, all you need is a little programming to turn the colorful lights (tubes filled with GFP) into custom images or interactive games like Tetris or Snake. You can also use it to develop your own scientific experiments. (For experiment ideas, Bixels' creator, the Irish company Cell-Free Technology, suggests the curricula from BioBuilder.)

A screenshot shows a user assembling a Bixel kit on video.

A pixel kit is housed in a cardboard box that looks like a Game Boy.

Bixels is designed to be used by people with all levels of scientific knowledge, helping make the world of biotechnology more accessible to the public. Eventually, Cell-Free Technology wants to create a bio-computer even more advanced than Bixels. "Our ultimate goal is to build a personal bio-computer which, unlike current wearable devices, truly interacts with our bodies," co-founder Helene Steiner said in a press release.

Bixels - Play tetris with DNA from Cell-Free Technology on Vimeo.

You can buy your own Bixel kit on Kickstarter for roughly $118. It's expected to ship in May 2018.

All images courtesy Cell-Free Technology

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Habibou Kouyate, Stringer, Getty Images
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science
Play a Game to Help Scientists Defeat a Cancer-Causing Toxin
Habibou Kouyate, Stringer, Getty Images
Habibou Kouyate, Stringer, Getty Images

If you're used to fighting virtual zombies or flying spaceships on your computer, a new series of games available on Foldit may sound a little unconventional. The object of the Aflatoxin Challenge is to rearrange protein structures and create new enzymes. But its impact on the real world could make it the most important game you've ever played: The scientists behind it hope it will lead to a new way to fight one of the most ruthless causes of liver cancer.

As Fast Company reports, the citizen science project is a collaboration between Mars, Inc. and U.C. Davis, the University of Washington, the Partnership for Aflatoxin Control in Africa, and Thermo Fisher Scientific. The team's online puzzles, which debuted on Foldit earlier this month, invite the public to create a new enzyme capable of finding and destroying carcinogens known as aflatoxins.

Aflatoxins form when certain fungi grow on crops like corn, nuts, and grains. Developing countries often don't have the resources to detect it in food, leaving around 4.5 billion people vulnerable to it. When people do eat food with high aflatoxin levels unknowingly, they can contract liver cancer. Roughly a quarter of all liver cancer cases around the world can be traced back to aflatoxin exposure.

The toxin's connection to agriculture is why the food giant Mars is so interested in fighting it. By working on a way to stop aflatoxins on a molecular level, the company could prevent its spread more efficiently than they would with less direct methods like planting drought-resistant crops or removing mold by hand.

The easiest way for scientists to eradicate an aflatoxin before it causes real harm is by making an enzyme that does the work for them. With the Aflatoxin Challenge, the hope is that by manipulating protein structures, online players will come up with an enzyme that attacks aflatoxins at a susceptible portion of their molecular structure called a lactone ring. Destroying the lactone ring makes aflatoxin much less toxic and essentially safe to eat.

The University of Washington launched Foldit in 2008. Since then, the online puzzle platform has been used to study a wide range of diseases including AIDS and Chikungunya. Everyone is welcome to contribute to the Foldit's new aflatoxin project for the next several weeks or so, after which scientists will synthesize genes based on the most impressive results to be used in future studies.

[h/t Fast Company]

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