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Simulation of tsunami from dinosaur-killing asteroid that brought 2.5 mile waves

sos.noaa.gov

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Re: Simulation of tsunami from dinosaur-killing asteroid that brought 2.5 mile waves

#151

Post by senttoschool »

phailhaus wrote: post #130
senttoschool wrote: post #129

Earlier quoted context omitted.

In the video, they said an impact like that happened an estimated 6 times and each time, life sprung back. The whole surface was sterilized. This makes me think that if life comes back after that 6 times, then it must be pretty easy for life to start.

Starting life is very different from recovering it. Luckily none of those asteroids killed all life.

In this particular Youtube video, they mentioned that the object that hit Earth was 500km or roughly 38 times larger than the one that killed the dinosaurs. I could believe that the Earth was sterilized from an impact that large.

Re: Simulation of tsunami from dinosaur-killing asteroid that brought 2.5 mile waves

#152

Post by wolverine876 »

rendall wrote: post #100
random314 wrote: post #81

Earlier quoted context omitted.

You know that ships have crew in it?

The crew probably has a good idea of the risks

I'm not sure they do - are they oceanographers? These are very rare events; very few crewmembers have experienced such waves.

Also, even if they do, it doesn't stop them from being exploited.

Re: Simulation of tsunami from dinosaur-killing asteroid that brought 2.5 mile waves

#153

Post by nextos »

cosmojg wrote: post #149
nextos wrote: post #35

Earlier quoted context omitted.

This is so true. Heavy-tailed distributions and extreme value theory [1,2] should be taught more widely. The normal distribution is just a very particular case of the generalized CLT. For example, some drug effects are heavy-tailed, but safety trials are often ignoring this. [1] https://adamwierman.com/wp-content/uploads/2020/09/2013-SIGM... [2] https://adamwierman.com/wp-content/uploads/2021/05/book-05-1...

Got any sources which discuss the heavy-tailed effects of drugs and how they're ignored by safety trials? I'd love to read more!

I don't have references with me right now, but there are quite a few reputable studies that have found effects to be log-normal.

Log-normal is a quite nasty heavy-tailed distribution as it's easy to take it for normal if you have small sample sizes.

This has tricked the safety calculations of a few trials. I don't think it's too worrying or generalized, just some area to improve.

Re: Simulation of tsunami from dinosaur-killing asteroid that brought 2.5 mile waves

#154

Post by phailhaus »

senttoschool wrote: post #151
phailhaus wrote: post #130

Earlier quoted context omitted.

Starting life is very different from recovering it. Luckily none of those asteroids killed all life.

In this particular Youtube video, they mentioned that the object that hit Earth was 500km or roughly 38 times larger than the one that killed the dinosaurs. I could believe that the Earth was sterilized from an impact that large.

When did it hit though, do we even know if life had started yet?

Re: Simulation of tsunami from dinosaur-killing asteroid that brought 2.5 mile waves

#155

Post by Tepix »

antisthenes wrote: post #146
Tepix wrote: post #142

Earlier quoted context omitted.

Always nice to have a second habitable planet.

Nuking it wouldn't make it any more habitable. At best you'd make the surface slightly warmer and maybe melt some leftover CO2 on the poles. To actually terraform it to anything resembling even an Earth desert, you'd need incomprehensible amounts of energy.

I don't expect it to work either. But there is probably enough water. Maybe not other stuff.

Re: Simulation of tsunami from dinosaur-killing asteroid that brought 2.5 mile waves

#156

Post by rendall »

wolverine876 wrote: post #152
rendall wrote: post #100

Earlier quoted context omitted.

The crew probably has a good idea of the risks

I'm not sure they do - are they oceanographers? These are very rare events; very few crewmembers have experienced such waves. Also, even if they do, it doesn't stop them from being exploited.

If you have an idea of the risks involved, then certainly people who are embedded in sea-going culture do as well.
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