Recent comments in /f/askscience

girhen t1_j1iirly wrote

I mean, it's not surprising. I know Vidalia onions only grow properly in one town of the same name in Georgia, USA. The soil quality and onion breed make a very sweet, pungent, and less acidic onion. I tend to use it for more things because it's easier to use and tastes so good.

So one small section of Japan makes sense for similar reasons.

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Romarion t1_j1ie34p wrote

Many things, none of which are particularly important as the feelings of the patient don't override the science of the sex. I haven't met a surgeon yet who planned a hysterectomy only to find out in the middle of the operation that the patient identified as a woman but was randomly assigned male at birth.

The history and an initial planned workup can be jumbled if it is not obvious which sex the patient is, but that is easily addressed once a physical exam or a more detailed history is taken, when they are important. For example, if you have a sprained ankle, neither your sex or gender identity alter the treatment for the injury. If you have abdominal pain, your sex and the presence or absence of various genitalia do become important in the workup regardless of your gender identity.

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Scott_Abrams t1_j1idrmr wrote

Very marginally, but yes, experiments have proven that time dilation is real, and appreciable, even at the level of Earth's satellites. Satellites and the ISS are affected by time dilation due to both general relativity (gravity) and special relativity (their velocity while orbiting Earth). The exact dilation is marginal, on the scale of microseconds per day, but is important to adjust for in systems such as our GPS navigation system, without which the accuracy of the system would be entirely worthless.

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Duros001 t1_j1i6tn4 wrote

You’re talking about time dilation

Almost an imperceptible time difference, but time is relative so a second will still “feel” like a second, you won’t feel different in the moment. If you start two stop watches and send one to the ISS for 1-2 years and bring it back to earth to compare to the “twin stopwatch”, we’re talking maybe a fraction of a second difference.

Send that stop watch to the very edge of a black holes event horizon and bring it back, we could be talking seconds, days or years, depends on a lot of factors.

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