I recently found my phone can capture some pretty good shots of the night sky. I have dabbled with some setups at home but managed to get a good photo while camping this week since it was much darker.

iPhone 15 pro max with tripod and Bluetooth clicker. 30s exposure, with some adjustments to brightness and contrast to help define the fainter stars from the background wash.

[–] 9 points 1 month ago (1 child)

This shape is called a Klein bottle if anyone was curious. There are some neat math videos about topology that discuss it. Water poured into the top can get into the interior through the handle.

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  • [–] 7 points 1 month ago

    I once fixed a broken guitar app for an elderly friend of mine. It was damaged during a lightning storm. He called the manufacturer, but they were from Europe and shipping it for repairs would cost more than a new amp. I offered to take a look, and after some probing with an oscilloscope and an AUX cable pushing some Mozart, I was able to find the signal stopped at a pre-amplifier at the input. I ordered a replacement IC for a few cents, and swapped it out. Worked like new after that. I was very satisfied to have saved it when the fix was so small.

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  • [–] 33 points 2 months ago (13 children)

    If you live in a climate that needs air conditioning to be comfortable most of the year, your roof and walls should be as white as possible. I have seen black shingles on new construction in Texas…

    Also, toilet paper direction is a personal preference and is often driven by needs like pets and toilet/wall distances.

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