IT Nerd of 30yrs and avid hobbiest of genealogy, geology and science in general.

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Joined 2 years ago
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Cake day: July 1st, 2023

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  • I always get downvoted for saying it, but I don’t care because the real water savings never came from stupid showers: It comes from not growing crops in the damned desert; it comes from not growing grass on lawns in arid environments; it comes from not raising so many cattle.

    Most low flow shower heads have a plastic insert in them called a restrictor that can be removed to make it work like the high flow ones.

    It’s nothing more than a small cylinder that can be pushed or pulled out from the shower line and manufacturers use these restrictors because it allows them to sell the same unit in multiple markets.

    EDIT: Forgot to add water savings reasons.







  • When an earthquake starts, it generates these seismic waves called primary high frequency waves or P-waves that travel super fast and secondary movement waves or S-waves that come with potential damage.

    Earthquake early warning systems work by detecting those initial P-waves and quickly estimate the earthquake’s location, magnitude, and intensity, sending alerts before the more destructive S-waves arrive at the surface.

    It’s those same P-waves, which we can hear as rumbles in the ground before the shakes start.