Man putting bare hand in molten lava. NOT EDITED!!!!

[artc 1,119]

This is a video that has a man put his bare hand into lava. THIS is not EDITED!!!

 

 

 

 

[artc 1,119]

there is a scientific reason that his hand was not harmed, see if u can figure it out

[SporkZilla 1,775]

Leidenfrost effect

[DieselPlatinum 5,121]

On 11/23/2020 at 10:07 AM, artc said:

there is a scientific reason that his hand was not harmed, see if u can figure it out

It's not really lava. It's nacho cheese.

[artc 1,119]

9 hours ago, At_Shin said:

mean to say that the same effect which makes water dance when put on a hot pan saved this guy? You jest.

[Venerable 2,971]

Lol as far as I know, if you move your hand fast enough, the heat from the molten metal won't be able to raise the temperature of your hand up to its ignition temperature.

(Ignition Temperature: lowest temperature at which a combustible substance when heated catches fire in air and continues to burn.)

You can actually try this with a candle flame. You can pass your finger through the flame without getting burnt: your finger will never attain its ignition temperature if you move fast enough. 

Some substances like white phosphorus have an ignition temperature so low, that they catch fire even if they're exposed to air at room temperature!

Matchstick heads have a low ignition temperature, so the heat generated from rubbing it against the rough side of a matchbox is enough for it to attain ignition temperature and it catches fire.

In case of relatively non-combustible substances like our hand, ignition temperature takes time to attain.

 

[Venerable 2,971]

@At_Shin 

I don't think it's the Leidenfrost effect, as I don't see any scope for a protective layer of vapour between our hand and the hot metal.

But yeah, I believe it's possible for the man to escape burns if he moves his hand fast.

Notice that he's almost slapping the flowing metal, which is pretty fast.

Also, he's taking a short break before repeating the action, giving his hand some time to slightly cool down, if at all it has got heated.

You really must try passing your finger through a candle flame, provided you are aged above 16 (that means you're hopefully mature enough and not childish, and fully understand the dangers of fire), or under supervision of your parents. I know your tentative age, but I must add this disclaimer. 

But remember to start moving your finger very fast, and gradually reduce the speed as you become more confident.

 

 

Edited November 25, 2020 by Venerable

[Venerable 2,971]

5 minutes ago, At_Shin said:

I know this bruv. I have been playing with fire for a long time now. (Much to my Paa's disappointment). But, try doing the same over a big fire. Or a fire with greater heat. You will know how your hand gets slightly singed even if you are quick. I can only imagine how hot molten rock is. Hence, i do not believe the video was true.

(Don't play with fire or else your hand might burn).

I think in case of larger fires, there's a very high chance that you'll burn you hand, because flames of larger size have an element of randomness. You may move your hand very fast, but your hand stays in the fire for a longer length (for want of a better word). 

In case of the flowing metal, there's a fixed path of the liquid, and it has a pretty much constant "volume" and shape while flowing. So your hand is guaranteed to emerge out through the hot liquid into the air.

This is not true for large fires, as their shape keeps mutating, and your hand might remain in the fire even after your fast action has been completed. So essentially your hand is in danger of attaining ignition temperature because it is still in the fire.

What do you think?

[Venerable 2,971]

8 minutes ago, At_Shin said:

Ever fried a pakoda/potato wada (indian fried snacks)?  If you have, chances are that you might have got a little hot oil splashed on your arm/body in a minor accident. That stings or burns depending on the amount of oil spilled on you. Now, were you in contact with the oil for a long time? No. It touches your arm only for a small moment. Yet, you feel the heat. I rest my case.

All right let's stop... XD

[artc 1,119]

4 hours ago, Venerable said:

Lol as far as I know, if you move your hand fast enough, the heat from the molten metal won't be able to raise the temperature of your hand up to its ignition temperature.

(Ignition Temperature: lowest temperature at which a combustible substance when heated catches fire in air and continues to burn.)

You can actually try this with a candle flame. You can pass your finger through the flame without getting burnt: your finger will never attain its ignition temperature if you move fast enough. 

Some substances like white phosphorus have an ignition temperature so low, that they catch fire even if they're exposed to air at room temperature!

Matchstick heads have a low ignition temperature, so the heat generated from rubbing it against the rough side of a matchbox is enough for it to attain ignition temperature and it catches fire.

In case of relatively non-combustible substances like our hand, ignition temperature takes time to attain.

 

a candle flame is totally different, the reason ur hand does not get burnt from that is that the oxygen supply is cut off from the flame. SO it wont burn as hard, if at all

[artc 1,119]

2 hours ago, Venerable said:

 

I don't think it's the Leidenfrost effect, as I don't see any scope for a protective layer of vapour between our hand and the hot metal.

 

 

Heres is the whole video, the person explans how the Leidenfrost effect is protecting him

Spoiler

 

 

[alkyng 3,080]

for those who want scientifically explain.

Here is a man, trying to move his hand in lava while it burning and the other one (maybe girl or man) trying to record him (probably with old mobile phone) as the video resolution isn't more than 360p and that man didn't get pain as we didn't hear him screaming (maybe it need another scientifc explain) and the guys is probably not a left handed person as he trying to put his right hand and the guys seems respect as he in the end of the video greeting with his hand

[artc 1,119]

13 hours ago, Adriel.RB said:

What if the guy slapping the lava is trying to hide the pain that he touched something extremely hot just for the video so it could become viral and earn fame and money off from it 

nope its not what happened, u could see his hand was not harmed

Edited November 26, 2020 by artc

[mydoom.exe 5,154]

4 hours ago, artc said:

nope its not what happened, u could see his hand was not harmed

yeah but you see hes just pretending not to be in pain. obviously he got hurt because he touched something very very hot do you not get hurt when you touch something thats very very hot