Recent comments in /f/askscience

PatrickKieliszek t1_j1j3wii wrote

Gravity causes time to run more slowly. Speed also causes time to run more slowly.

On the surface of the Earth, we have higher gravity. This causes our clocks to run slower.

The ISS is moving much faster than we are. This causes their clocks to run slower.

The ISS is not that high up and it it moving VERY fast. The slowing effect from their high speed is greater than the slowing effect from our higher gravity.

Their clocks run ever so slightly slower than ours.

2

przyssawka t1_j1izih5 wrote

yes. For the first question at least. Never skydived in winter.

*Subjective* nasal patency (the perception of airflow) and nasal airflow are two completely different things. The study I posted compares effects of different air conditions on the perception of airflow. Cold air (or rather "heat loss by mucosa") was consistently the best way to evoke the feeling of decongestion. None of the conditions improved the actual flow.

This direpacy between the flow and perception can also cause the adverse effect for patients who underwent concha reduction surgery (conchoplasty) or Endoscopic Sinus Surgery, to suffer from "empty nose syndrome", which is the subjective feeling of low nasal patency with optimal airflow.

85

EGP22 t1_j1iv024 wrote

I’ve always struggled to get this concept and I find your explanation very good. I think what still gets me is that if a second is a second, I still don’t get why someone moving at .5c appears to have lived “300 years” when the same amount of actual time has elapsed, “80 years.” I am dense though so this isn’t a lack of teaching rather learning.

7

Captain_Kuhl t1_j1iuyfq wrote

There's a Business Insider series on YouTube called So Expensive, and they cover wasabi in one of the episodes. It's pretty good for a filler show while you're not doing anything, sort of like How It's Made, and they'll condense an entire season into a couple hours for one continuous watch.

12

bacondota t1_j1iq8tu wrote

The experience is the same. Say you cut 2 potatos a minute on Earth. You go embark on some spaceship. You still cut 2 potatos a minute there.

It is not that " time is moving slower, I can do more stuff" like in movies, where some speedster see stuff in slow motion but can still act on normal speed.

It is time is moving slower, it also affects me, im also moving slower. In the end whoever is on the spaceship will experience the same time.

In another way, if someone is born, lives and die on a ship that is moving half the speed of light, for earthlings it may appear to them he lived like 300 years, but for the person that lived on that spaceship, he lived only 80 years just like everybody else.

18

mtfellie t1_j1ijkm7 wrote

Vidalia only grow in that one spot because Vidalia onions are regular sweet onions grown in a sulfur poor environment. The sandy soil of Vidalia, Georgia causes sulfur to run down through the soil into the water table instead of settling near the surface to be used by plant life. This results in low VOSC content in the onions reducing the burn from them. The most notable of these VOSCs is Allicin ,a compound which when exposed to oxygen, acts basically like tear gas to us humans.

Edit: de-shatnerized

37