Threads by latest replies - Page 839

(13 replies)

WHAT!!!! Out of 66 covid deaths, 7 boosted and 52 with incomplete jabs.

No.14192792 ViewReplyOriginalReport
>80% of people who died in 2022 in the capital did not take all doses of the vax against the disease.
Then..
>The survey also shows that there was no information on immunization of seven other deaths and that only seven had taken all doses against the disease.
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(8 replies)
No.14193559 ViewReplyOriginalReport
We can imagine work as displacement of a body in the direction of force which implies that work is a vector quantity and points in the same direction as that of the force.

For example a body moved for 1 meter towards east is not the same as that body moved for 1 meter towards the north. And when a force of 1 Newton acts upon a body and moves it for 1 meter eastward, then the work done would be 1 N/meter eastward. But the quantity of work done is not the same in the northeast direction.

So the amount of work done varies with direction in a similar proportion with force

And if work is a vector, then obviously energy becomes a vector too because work done is energy spent.

But doesn't that go against the most famous and chanted principle of mass-energy equivalence?
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(34 replies)

what is the most fundamental theorem of mathematics?

No.14189732 ViewReplyOriginalReport
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(41 replies)
No.14189499 ViewReplyOriginalReport
why are women gatekeeped out of science ?
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(5 replies)

Tell me guys..

No.14194210 ViewReplyOriginalReport
What are your thoughts on the idea that we live in a false vacuum and that vacuum energy may "tunnel" to a lower energy state at some point?

Do you think it is a likely scenario in the next say, 10^10 years?
(11 replies)

Does this, scientifically speaking, work?

No.14190994 ViewReplyOriginalReport
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(27 replies)

motion is not relative!

No.14190392 ViewReplyOriginalReport
A change in the observed frequency of a wave due to relative motion between the source and observer is called Doppler Effect

For example when a police siren approaches us, we hear a high pitched (high frequency) sound and as the siren passes away from us, we hear a low pitched sound even though the siren produces the sound at the same frequency throughout.

So different observers note a different frequency for the same wave depending upon their relative motion with respect to the source.

We know that it is the relative motion between the source and the observer that results in Doppler shift. And we also know that motion is a relative thing, so whether it is the source or the observer who is moving, things should remain the same for the observer in both the scenarios.

In other words the observer will not be able to tell whether he is moving towards the source or the source is moving towards him because from his perspective both scenarios are identical. The implications of this are enormous, in case if the observer is able to tell who is actually moving by looking at a particular wave or projectile released by the source, then that obviously goes against the basic premise that motion is relative.

Imagine that a stationary source fires a projectile towards a stationary observer at 10m/s. The observer here obviously sees the projectile approaching him at velocity 10m/s. Now imagine the following two scenarios

1) the source moving at 10m/s towards the observer as it fires the projectile
2) the observer moving towards the source at 10m/s as the source fires the projectile

From the observer’s perspective he is always stationary and hence he notes no difference in the above scenarios, according to him, the source is approaching him at 10m/s and the projectile at 20m/s. He sees no difference in what he experiences and he will not be able to tell who is actually moving.

But how come an observer experiences a wave differently depending upon who is moving?
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(5 replies)

Is nicotine a good nootropic?

No.14193860 ViewReplyOriginalReport
If you are wondering if im shilling nicotine or just retarded, it is the latter.

https://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.460.6702&rep=rep1&type=pdf

>improves your memory and focus, but makes you addicted to it

Is it basically a deal with the devil?
(5 replies)

I have a problem taking a shit

No.14194239 ViewReplyOriginalReport
Warning: this is NOT a joke or satirical post.

Hi you guys, as stated above I have some kind of a psychological problem taking a shit. Doesn't matter if I'm at home or at work - I can't force myself to shit unless I'm all alone. It matters not If I really feel the urge to do it. I live with my gf and it's really fucking annoying waiting for her to go shopping or do some other activities just to be able to take a dump at my own fucking house.

Please help me and thank you in advance
(5 replies)

Molecular Biology JC

No.14194178 ViewReplyOriginalReport
Haven't read any papers in a while but I have to give journal club so I ask you for a paper recommendation in the area of molecular biology, biochemistry or genetics.

I'm in my last year, jaded as fuck, not doing much of anything in the lab anymore just trying to find a job. I figured you might have read some cool papers recently that I can present for JC.

Picture just to get your attention