Thursday, November 7, 2019

What does it mean physically that the Weak force and electromagnetism become one force at a certain energy?

What does it mean physically that the Weak force and electromagnetism become one force at a certain energy?
If a black hole's singularity is infinitely dense, how can a black hole grow in size leagues bigger than it's singularity?
Voyager 2 has reveled that the interstellar medium near the heliopause has a temperature of around 30,000-50,000K (29,000-49,000C). How and why doesn't Voyager just melt with such tempatures?
Why does orbital penetration reduce the energy of an orbital?
How is detecting exoplanets via transit effective if some planets take decades or more to complete an orbit?
Regarding transplanted organs, does the body eventually replace all the cells of the organ with "native cells" or are they still cells of the donor?
Does medicine actually expire? If so, how
How does RNA polymerase know how to find the promoter regions on DNA?
How do our bodies make stomach acid?
Frame-dragging effect and the Lense-Thirring metric. What exactly is happening to spacetime?
Why is the international date line crooked?
Why aren't there any unedited/stitched photos/videos of Earth?
What do these number in front of hormone names mean?

Posted: 06 Nov 2019 06:53 PM PST

submitted by /u/angryco1
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If a black hole's singularity is infinitely dense, how can a black hole grow in size leagues bigger than it's singularity?

Posted: 07 Nov 2019 03:41 AM PST

Doesn't the additional mass go to the singularity? It's infinitely dense to begin with so why the growth?

submitted by /u/CyberMatrix888
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Voyager 2 has reveled that the interstellar medium near the heliopause has a temperature of around 30,000-50,000K (29,000-49,000C). How and why doesn't Voyager just melt with such tempatures?

Posted: 06 Nov 2019 05:44 PM PST

Is the vacuum of space the same temp or is it just the infrequent and tiny particles that are this temp? I thought space was rather cold when away from a star.

submitted by /u/PurpleSailor
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Why does orbital penetration reduce the energy of an orbital?

Posted: 07 Nov 2019 02:20 AM PST

I've read that by approaching the nucleus, the electrons lose energy. So i'm guessing that the 2s orbital is lower in energy than 2p since it is more penetrating, likewise for how 1s is lower energy than 2s. I would like to think this has something to do with Coulomb's Law but I'm not too sure why or how electrons lose energy near the nucleus?

submitted by /u/lurker4011
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How is detecting exoplanets via transit effective if some planets take decades or more to complete an orbit?

Posted: 07 Nov 2019 02:12 AM PST

Or is the transit method only practical for exoplanets with an orbit within a reasonable timeframe?

submitted by /u/Inverse_Square_Law
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Regarding transplanted organs, does the body eventually replace all the cells of the organ with "native cells" or are they still cells of the donor?

Posted: 06 Nov 2019 10:37 AM PST

As I understand it, all cells in the human body are replaced by in roughly 7 years time frame, and organ transplant recipients have to take medication to help the body not reject the organ. Do they have to continue taking the medication the rest of their life, or only for several years?

submitted by /u/Ignis33
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Does medicine actually expire? If so, how

Posted: 06 Nov 2019 10:42 AM PST

submitted by /u/FractalApple
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How does RNA polymerase know how to find the promoter regions on DNA?

Posted: 06 Nov 2019 01:23 PM PST

Is it just floating around and just so happens to run into a promoter site and start its process?

How does it know the xyz coordinates of where it needs to be to start this process? Is it making decisions????

submitted by /u/Captainbuttram
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How do our bodies make stomach acid?

Posted: 06 Nov 2019 12:12 PM PST

submitted by /u/Guyfoxmatt
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Frame-dragging effect and the Lense-Thirring metric. What exactly is happening to spacetime?

Posted: 06 Nov 2019 05:04 PM PST

Is spacetime moving? Is it a semistatic quality of spin around a massive rotating body?

submitted by /u/Xxx_M4D-R0n1n_xxX
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Why is the international date line crooked?

Posted: 06 Nov 2019 06:01 AM PST

submitted by /u/theflameinthewind
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Why aren't there any unedited/stitched photos/videos of Earth?

Posted: 06 Nov 2019 05:18 PM PST

To my knowledge we don't have any just straight photos or videos. There's definitely a reason (I'm not a flat earther or anything trying to poke holes or anything like that) and I wanna know. Thanks

submitted by /u/myhamsareburnin
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What do these number in front of hormone names mean?

Posted: 06 Nov 2019 07:29 AM PST

For example, 25-hydroxycholecalciferol or 7-dehydrocholesterol.

From a biology POV I understand what the hormone is and its role. But I've never understood what the numbers mean in front. Thank you for the help.

submitted by /u/HockeySlayer89
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