Scientific fact na knowledge Thread

[Ertugrul Bey]

Nimejisajili hapa

 

[Ninaweza]

Kwani mwanga una travel with respect ya motion ya hilo panga?

HII NI KWA HISANI YA META AI
You can see through a fast-spinning fan because of how your eyes and brain process motion, plus the fan blades don't actually block your whole view all the time.

1. The blades aren't everywhere at once
Even when a fan looks like a blur, the blades are still just 3-5 solid pieces. At any instant, they only cover about 5-15% of the circle. The rest is empty space. So 85-95% of the time, any given spot behind the fan has a clear line to your eye.

2. Persistence of vision + flicker fusion
Your eyes don’t take a single snapshot. They average what they see over ∼1/16 to 1/30 of a second.

If a fan spins at 1200 RPM, that’s 20 rotations per second. A 3-blade fan means a blade passes a given point 60 times per second.

At that speed, your retina blends the moments when the blade is not there with the brief moments it is. Since the “not there” moments dominate, your brain builds a semi-transparent image of what’s behind it. It’s the same reason a movie at 24fps looks like smooth motion instead of 24 still pictures.

3. You’re mostly seeing around the blades, not through them
Do this: hold your hand up and wave it back and forth fast in front of your face. You can still see the room behind it. The fan is just doing that automatically and way faster. Your brain fills in the gaps from the glimpses it gets between blades.

When you can’t see through it:
• If the fan is spinning slowly, you’ll see distinct blades and they’ll block stuff. Your eye can’t fuse the images yet. • If the blades are very wide or there are many of them, they cover more of the circle, so less background gets through. • If it’s dark behind the fan, those brief glimpses aren’t bright enough for your eye to register, so it looks more solid. • If the lighting flickers at the same rate as the blades pass — like under some LED or fluorescent lights — you can get a strobe effect where the blades look frozen. Then they block the same spots repeatedly.
This is basically the same physics as why wagon wheels in old movies look like they spin backwards, or why you can see through helicopter rotors.

Want to try a cool demo with your phone’s slow-mo camera to see the blades “freeze”?

 

[de Gunner]

Hahaha hapana na ndio maana pia kuna theory ya big crunch ambapo ulimwengu unacolapse na kurudi kwenye point kama ilivyokuwa Kabla ya big bang. Yaani nothing is created nor destroyed its just manifest and unmanifest and the circle continues until forever.

Walau hiyo concept kuliko mdudu anaitwa big bang tulichezewa hapo

 

[min -me]

In Buddhism hatumaanishi emptiness ya kufikirika au ku conceptualize?

Ni dhana ya kujua kuwa even being aware of the self is an illusion to keep you hooked at ego

Najua utasema awareness ni being aware of awareness.

Je ni kuulize hiyo awareness ni nini?

Nothingness sio concept wala haiko atttached to anything. Ni kudrop kila kitu hata wazo lakujua

Kusema nothingness is beyond awareness tayari ni statement inayotoka kwenye awareness yenyewe huwezi kukataa chombo kwa kutumia chombo hicho hicho.

 

[dosho12]

MRI machine za hospitali wazo lake lilitokana na kutaka kujua jinsi ya ku detect gas clouds sababu hazitoi mionzi ya light bali inatoa radio waves hivyo inatakiwa kujua the nucleus ya Atom, na ikagundilika nuclues inaweza kuendana kutegemea na uzito wake ( atom gani iliyopo kwenye periodic table ) itaendana (resonance ) tofauti kidogo pindi itapowekwa kwenye same electromagnitic field na ilikuwa inaitwa Nuclear magnetic resonance watu wa medical wakaona na kuhisi kama unaweza kutofautisha heavy atom kwa nyingine basi inaweza kutofautisha tissue za mwili pia

 

[de Gunner]

Kusema nothingness is beyond awareness tayari ni statement inayotoka kwenye awareness yenyewe huwezi kukataa chombo kwa kutumia chombo hicho hicho.

Sijasema

Nimeifanya awareness yangu irudi iliko toka

Nimejua ya kuwa hata emptiness au nothingness ni labels tu..

Baada ya hapo hakuna kinacho exist tena hata awareness yenyewe

 

[de Gunner]

Hahaha hapana na ndio maana pia kuna theory ya big crunch ambapo ulimwengu unacolapse na kurudi kwenye point kama ilivyokuwa Kabla ya big bang. Yaani nothing is created nor destroyed its just manifest and unmanifest and the circle continues until forever.

Jinsia tafadhali wewe ni Me au KE?

 

[de Gunner]

Hahaha hapana na ndio maana pia kuna theory ya big crunch ambapo ulimwengu unacolapse na kurudi kwenye point kama ilivyokuwa Kabla ya big bang. Yaani nothing is created nor destroyed its just manifest and unmanifest and the circle continues until forever.

Hiyo crunching mbona sijawahi isikia ni theory ya nani?

 

[min -me]

Sijasema

Nimeifanya awareness yangu irudi iliko toka

Nimejua ya kuwa hata emptiness au nothingness ni labels tu..

Baada ya hapo hakuna kinacho exist tena hata awareness yenyewe

You may dissolve all identifications body, mind, labels, even ‘emptiness’ itself but what remains is not a thing you can define as nothing. It is the basis of experience itself.

 

[sawima]

Jinsia tafadhali wewe ni Me au KE?

Ke

 

[sawima]

Hiyo crunching mbona sijawahi isikia ni theory ya nani?

Endelea kusoma utakutana nayo.

 

[sawima]

You may dissolve all identifications body, mind, labels, even ‘emptiness’ itself but what remains is not a thing you can define as nothing. It is the basis of experience itself.

And it is something which the mind can not comprehend.

 

[de Gunner]

You may dissolve all identifications body, mind, labels, even ‘emptiness’ itself but what remains is not a thing you can define as nothing. It is the basis of experience itself.

Refer nilisema kuhusu emptiness not being a concept or an experience.

Do you know even the experience itself is futile.. When you just feel it tayari unakuwa kwenye ego na attachment

 

[de Gunner]

And it is something which the mind can not comprehend.

Umesema? The mind can't comprehend so it's not not on your perception...

Ndo nothingness nayo izungumzia

 

[de Gunner]

Ke

Ok

 

[de Gunner]

Endelea kusoma utakutana nayo.

Atleast nambie napata wapi?

 

[de Gunner]

Endelea kusoma utakutana nayo.

I just wanna know kama ina make sense tu, maana hawa wengine porojo

 

[de Gunner]

Katika habati za cosmos.

Inasemekana astronomers wakitumia hizo telescope zao wakifocus pale ambako kuna nafasi kati ya nyota( usiku ukiangalia angani utaona kuna vijinafasi kati ya nyota) basi hapo wanaona zaidi ya galaxy laki moja.

Inasemekana supernova huwa inatokea mara moja kwenye galaxy husika kila baada ya miaka Mia moja so astronomer akiwa na telescope yake usiku kucha anaweza kushuhudia nyota kuanzia moja hadi Tatu ziki explode(supernova).

So basically tunajishauwa tu kutafuta mwisho wa ulimwengu

 

[Shilings]

Watu wengi duniani ni wahanga

 

[Thecoder]

Wekeni vitu tunafuatilia kwa ukaribu sana wakuu... Uzi wa moto sana