Oxygen into wine
In vino veritas, they say, but you find more than truth in a good glass of red. Oxygen, in just the right amount, is crucial. The air-tight steel barrels often used for aging make it difficult and expensive to ensure a wine gets enough. Now New Zealand entrepreneurs have created the “wine grenade” – a small, cheap gadget that can be plonked into the tank to gradually release a specific amount of oxygen, making sure your red is perfectly breathed.
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The thickness in micrometres of a screen made by Korean electronics company LG – so thin you can stick it to the wall with a magnetic mat
Algorithmically racist
Two tech giants faced public outcry over embarrassing bugs this week. Searching a racial slur on Google Maps sent users to the White House. Meanwhile, Flickr’s automated image tagging had been labelling pictures of black people with the words “ape” and “animal”, and pictures of Dachau concentration camp with “jungle gym”. Both companies apologised and pledged to fix the issues.
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