Tesla formally broke ground on its first lithium refinery in Robstown, Texas, on Monday afternoon, marking the electric vehicle maker’s foray into processing a key metal used in its batteries. Tesla CEO Elon Musk, who stood in front of Tesla’s new Cybertruck as tractors worked the earth in the background, said the company expects the facility to produce enough lithium to build batteries for...
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How a Hidden Bar Code in iPhone Screens Saved Apple Hundreds of Millions of Dollars
Next time you try to wipe a smudge off your iPhone screen, take a closer look. See if you can spot one of the two tiny QR codes etched into its glass. Chances are you won’t be able to find them. Both codes are tiny—one is the size of a grain of sand and can only be seen with special equipment, while the other, roughly the size of the tip of a crayon, is laser-printed on the reverse...
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