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Cake day: June 22nd, 2023

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  • Security is there to make sure you’re not carrying illegal stuff, as long as that’s fine, the only time they maybe check the id is before giving you the boarding pass.

    Looks like the guy didn’t have a boarding pass altogether, so not sure how he got into the plane.

    There is usually a person or an automatic gate that checks your pass before allowing you through the plane. However that’s more like a ticket check and to make sure people don’t get on the wrong planes, it’s probably not super hard to get around.










  • Blue light gets scattered more by the atmosphere. So less blue light is received directly in a straight line from the sun and more is reflected from other parts of the sky. That’s also why the sky looks blue in the day and why the evening sky looks red (if the sun is very low during the evening, the blue light can’t reach you because it scattered so much due to the very long shallow way through the atmosphere)








  • Yes, it’s very efficient and the core of what complession formats like .zip do.

    The main difference to your idea is that computers count in binary like 0, 1, 10, 11, 100, 101 and so on and that you don’t want to assign these very low codes words directly. Say you’d have assigned 1 the most common word, then that will would be encoded very short, but you’d sort of take the one away from all the other codes, as you don’t know if 11 is twice the most common word or once the 11th (3rd in decimal) common word.

    Huffman essentially computes the most optimal word assignments mathematically.

    The main other difference between your suggestion and most compression algorithms is that you wouldn’t use a huge dictionary in real time and loading it and looking into it would be very slow. Most compression algorithms have a rather small dictionary buildin and/or they build one on the fly looking at the data that they want to compress.