- One-Time Pad Reinvented To Make Electronic Copying Impossible
The ability to copy electronic code makes one-time pads vulnerable to hackers. Now engineers have found a way round this to create a system of cryptography that is invulnerable to electronic attack
- Liquefied Air Could Power Cars and Store Energy from Sun and Wind
A 19th-century idea might lead to cleaner cars, larger-scale renewable energy.
Some engineers are dusting off an old idea for storing energy—using electricity to liquefy air by cooling it down to nearly 200 °C below zero. When power is needed, the liquefied air is allowed to warm up and expand to drive a steam turbine and generator.
- Intel Fuels a Rebellion Around Your Data
The world’s largest chip maker wants to see a new kind of economy bloom around personal data.
Intel is a $53-billion-a-year company that enjoys a near monopoly on the computer chips that go into PCs. But when it comes to the data underlying big companies like Facebook and Google, it says it wants to “return power to the people.”
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