There’s no evidence that it does anything. David Sinclair is the the one that discovered that altering a protein class called sirtuins can limit aging in yeast. Resveratol works on those proteins. I don’t know of any negative effects to taking it (I don’t think there are but I don’t want to mislead) but there is literally no evidence after a ton of trials that it actually has any effect on anything in humans. The thing is that there are some scientists that are incredibly smart, even among other researchers, and incredibly gifted at designing creative experiments but then draw insane unsupported conclusions from the results.

So basically if you want to take it fine and personally I wouldn’t say I’m completely convinced it’s useless (though it sure looks like it is), but expect it to just do nothing and understand his claims are not backed by his own data.

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Basically so that we can observe different phenomena and focus on the necessary details in different ways. When your eyes "saccade" - move rapidly from one point of focus to another, our brains are cutting out the information between the two points and just working to rapidly jump from one point of interest to another. With smooth pursuit, our brain and eyes are maintaining a tracking focus on slowly moving target so that we don't miss any detail - if the target speeds up though our eyes will switch to saccade movements to keep up with where the target is going along it's expected trajectory. The video below gives a brief introductory overview of eye movement and will familiarise you with some handy terms to research further.

https://youtu.be/FaC2RXBss2c

Worth emphasizing your second paragraph: East and West are not defined by the sun rising and setting. That would be a very silly idea. They're perpendicular to North and South because they're defined as perpendicular to North and South.

Eh. ConsumerLab calls the claims "exaggerated" and "even contradictory." Resveratrol activates the SIRT1 "longevity gene" associated with cellular metabolism, cellular repair, and lifespan. That's where the hype comes from.

The German study they cite re: longevity was small and involved obese mice "on an extremely high fat diet. Whether normally fed mice also show life extension by resveratrol remains unanswered." The high-fat diet mice had a 15% longer lifespan.

A 2017 Denmark study with humans is where the contradictory part comes in. High doses of resveratrol can lead to high total and "bad" LDL cholesterol levels and atherosclerosis. It inhibits an enzyme that metabolizes statins (which affect heart health). Low doses didn't have this effect, but no positive effect was found, either.

The website notes that many clinical studies are currently underway, but their comprehensive examination convinced me not to bother with it right now.

Wait is the hologram a thing or isn't it?

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The problem is that there is no way to communicate with entangled particles alone. Even if we assume perfect entanglement preserved all the way into the black hole, there's no way to send information: this is known as the no-communication theorem.

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Your friend is right and then wrong.

Yes, turbocharged engines usually have lower static compression ratio. For example my Subaru had 8.5:1. While NA engine is typically 11 to 13. But why ?

To compensate for higher air pressure from turbocharger. To make more force you need more pressure that comes from explosion. By forcing more air in, you can add more fuel and generate more pressure.

Turbocharged engines tuned for performance need better octane fuel, because you are trying to compress air that is already compressed, meaning that temperature raises more quickly.

Why do I feel dizzy waking up after 10 hours of sleep? And it's constant throughout the day. Going on for 2-3 days now.

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Whether it's photons, radio waves, neutrinos, or relay satellites, you're still trying to gain information from an area that nothing, not even signals, can escape once it's inside.

Edit to say ignore the neutrino part. I'll save an edit to say I know antineutrino has to be said.

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You could use local groundwater tables and soil types to predict where it might spread. You could also build a series of test wells and add some sort of marker to the water, wouldn't be that accurate, but high confidence.

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This might be a dumb question but in terms of human gametes, why did sperm evolve to lack cytoplasm whereas eggs evolved to have increased cytoplasmic content? Is there an advantage to this??

Wouldn't that be true of any mass? All mass has gravity thus would affect space-time?

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Virus researcher here. The answers provided here cover most of it - the compatibility between virus and host largely determines the success of a virus jumping into a new species. What hasn't been mentioned much is opportunity. There's probably many viruses like SARS-CoV-2 out there in bats and other animals that haven't emerged in humans (yet) because the circumstances that put them in contact with us haven't happened yet. Once they do we'll be at risk of another pandemic. Likewise, many animals are likely susceptible to some human viruses but rarely get a chance to catch them from us.