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Cake day: June 16th, 2023

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  • How many places outside of Europe regularly use green houses for agriculture?

    For Europe, integrating solar voltaics into the existing greenhouse covers seems like a decent idea. Most of the infrastructure is already there and there are various breeds of plants designed to be grown there.

    North America, in contrast, doesn’t use greenhouses outside of niche crops. There is no infrastructure set up, crops are grown where natural temperatures are adequate, and breeds are selected to take full use of the sun.

    Agri-pv may work in Europe because of how agriculture works there, but it may not scale to other parts of the world.













  • To add on what you said since it was the most complete answer, the first credit cards didn’t start with a magnetic chip but had raised numbering that cashiers would emboss the numbering onto a carbon copy slip. The shop would keep two copies of the receipt and the customer would keep the third.

    The switch to magnetic swipe on North America took a while because it required a phone connection to verify the card number. Europe switched to chips earlier than North America in part because a lot is stores didn’t have the required phone/data connections for continuous use, so the chip was developed to be used in cases where there wasn’t any connectivity with the card reader.