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Fire is one of mankind’s most fundamental technologies, and is useful or mandatory in all kinds of survival scenarios. Light, heat, cooking, signaling: fire can do a lot for you. Naturally, you’ll need to have the know-how and tools to start a fire, and lacking either you could be in for a bad time. Luckily, clever survivors can get a fire going with common batteries and little else. Starting a fire with batteries is an often overlooked method that is surprisingly simple and does not require any special tools or specialized materials. In this article, we’ll show you several methods...

[TAG0]James Webb has spotted an asteroid the size of the Roman Colosseum. Astronomers say that the 300 - 650 foot asteroid is part of our solar system’s main belt, and that it was originally spotted between Mars and Jupiter. It’s likely the smallest item that Webb has detected to date. “We — completely unexpectedly — detected a small asteroid in publicly available MIRI calibration observations,” Thomas Müller, an astronomer at the Max Planck Institute for Extraterrestrial Physics in Germany, explained. These Webb observations weren’t meant to detect new asteroids. Instead, the observations were meant to create calibration images of the...

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[TAG0]Scientists have managed to do something truly groundbreaking. According to a new paper published in Advanced Science, researchers have created programmable cyborg cells that could help revolutionize medicine and environmental cleanup efforts. The new research, which was carried out by researchers at the University of California, Davis, shows that it is possible to create semi-living cyborg cells that retain the capabilities of living cells, but are unable to divide and grow. It’s this inability to replicate that makes these programmable cyborg cells such an important breakthrough. In order for artificial cells to truly be useful, they need to be able...

[ comments ] The UK has used small credit-card sized tickets to pay for train travel for years and years, since long before I was born — originally the APTIS ticket, which later got replaced by a slightly easier to read version printed onto the same stock. Nowadays, the industry would very much like you to ditch your paper ticket in favour of a fancy mobile barcode one (or an ITSO smartcard); not only do they not have to spend money on printing tickets but they also gain the ability to more precisely track the ticket’s usage across the network...