Threads by latest replies - Page 296

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Can you look directly at a mushroom cloud?

No.14345977 ViewReplyOriginalReport
I hear looking at a nuclear detonation will cause permanent or temporary blindness, is this so?
I also hear you can determine if the nuclear detonation will reach you if the mushroom cloud is smaller than your thumb, this too I want to know about.
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How Much Energy Is Added When a Piston Compresses Air

No.14349625 ViewReplyOriginalReport
When you compress a gas, is the increase in temperature proportional to the energy it took to compress the gas divided by the product of the number of particles in the gas and the Boltzmann constant?

Here is my reasoning. The temperature of a gas is equal to the energy per particle of that gas. To get the joules per particle of a gas, you multiply the temperature by the Boltzmann constant. To find the total energy of a gas, you multiply that value by the number of particles in the gas. So it seems to me that it follows that to find the increase in temperature of a gas after compression, you divide the energy it took to compress the gas by the product of the number of particles in the gas and the Boltzmann constant.

I think I'm missing something, because different substances have different thermal capacities.
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No.14350353 ViewReplyOriginalReport
How dangerous is Chernobyl today? If you were to take a drive through the red forest or dig a hole in the soil and sit in it, how much radiation would you be exposed to?
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Evolutionary theory.

No.14348591 ViewReplyOriginalReport
I purpose that all predators eventually go extinct and are replaced by prey species evolving into predators. This is because there are far fewer predators than prey, and have far stricter diet requirements. Whenever an ice-age or meteor hits, predators will starve and herbivores will thrive due to their huge populations and lenient diet of plants. Herbivores will fill every niche imaginable and have many more chances to evolve, eventually producing a faux predator that out-competes the real predator and drives it to extinction.

Look at hippos for instance, dangerous animal in Africa, plant eaters that occasionally eat rotted meat, if something shifted in the environment or evolution they could easily outcompete lions.
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Coronal Mass Ejection thread

No.14350283 ViewReplyOriginalReport
An X1 flare (R3 - Strong Radio Blackout) occurred at 1:37 pm EDT (1737 UTC) March 30th, 2022. The flare source location was from the magnetically complex sunspot group, Region 2975. Initial indications are this flare was associated with a new coronal mass ejection (CME) and SWPC forecasters are currently examining data to confirm any CME, and if verified, analyze further to determine whether there may be any Earth-directed component. This same sunspot group has been the source of multiple M-class flares (R1 - Minor) over the past few days, with the strongest prior flare being an M4 at 28/1129 UTC.
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ballsack disproves evolution

No.14348300 ViewReplyOriginalReport
how did dudes use to run around with their ballsacks out before clothes were invented?
>literally the most important organ
>if you try to run it will physically hurt your testicles from the motion of hitting your leg
>surrounded by extremely thin skin that provides no protection
>hanging out at bite or grab range of whatever the fuck you're fighting
this proves ballsacks were designed with clothes in mind
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No.14342563 ViewReplyOriginalReport
I'm taking 10mg of olanzapina, what I'm in for it, /sci/bros?
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Are more people having ADHD or just "weak minds"

No.14345988 ViewReplyLast 50OriginalReport
Lots of kids nowadays complain about muh ADHD, even /sci/ is infested by the usual "I am smart but I can't focus". What's the reason behind this?
Social medias, 4chan, videogames or plain ineptitude in your study routine?
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No.14350162 ViewReplyOriginalReport
>mfw uni is getting in the way of learning again
Uni is a meme but unironically. It's much more effective to learn from a book and do some practical exercises by programming out the concepts than to gulp down some superficial crap for some attendance tests and 5 papers per term.