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#19602
Check your helmets

 

#19603
1 hour ago, nnm said:
Check your helmets

 

I guess getting bit in the temple by a baby king cobra is bad? 

What if I dont have one of those handy snake dealies around?

#19606
22 hours ago, markstanco said:

Belongs in the holy shit thread and the airplane thread, but more holy shit!!!!!

 

It sounds almost like a prank call. 

#19608
17 hours ago, huge said:

I guess getting bit in the temple by a baby king cobra is bad? 

What if I dont have one of those handy snake dealies around?

Prince cobra?

 

make the safe choice, people. Stop wearing helmets. 

Edited by Pato del Muerto

#19614

Well it’s kinda hard to follow that one.  But I guess I’ll try:

😳😳😳

 

#19616
At first, I thought it was a shark, but that’s honestly more terrifying

sweet song, is a bonus.

#19626
That's fake, right?  How come there's no steam coming up from the melting/evaporating ice?

Read the thread linking to the original post. It’s apparently real, and fascinating as to why no steam appears.
#19630
23 hours ago, Brisketexan said:


Read the thread linking to the original post. It’s apparently real, and fascinating as to why no steam appears.

I would assume it’s because it is so hot that the moisture is instantly evaporated? /haven’t read the linked thread but wanted to guess 

#19631

Here’s the explanation for those of y’all too lazy to click and/or don’t have FB
 

A bit of science.

I've got several comments regarding the fact that the videos I posted these days must be fake. Someone thinks the videos are sped up (I never speed up videos, unless specifically stated), some others claim that it's fake because the snow doesn't produce steam when touched by the lava.

Here I try to explain why the latter phenomenon happens.

In the abstract of a paper published in 1984 by A. A. Mills called "Pillow lavas and the Leidenfrost effect" is stated: "This is made possible by the Leidenfrost effect, the phenomenon whereby film boiling replaces the usual nucleated boiling above a certain temperature, thereby forming an insulating sheath of vapour around any sufficiently hot body immersed in a liquid. Only on cooling below a certain temperature (defined as the Nukiyama temperature) will rapid heat exchange occur between water and hot, gas-free lava."

This applies in the situation shown in the video. In easy words, when the water, or the snow in this case, is touched by a superheated surface (the lava) it forms a very thin layer of steam which protects the snow. It would take a bit longer, and a bit of cooling, to start producing plumes (nucleated boiling). Since lava moves fast, it covers the snow before that can happen.

Regarding the speed, that's the actual speed of Thursday's lava flow. I have no need to speed it up for whatever reason. Basaltic lava, with that low content of silica and temperature over 1100°C, moves fast, even on a quasi-flat surface.

So, before you waste your time vomiting your statements under some content, use it to study a bit of lava rheology or thermodynamics. Then we can have a constructive discussion.

One thing is for sure, from me, you will never get fake videos or composite footage. That's not my style, and I have no need to change that.

© Marco Di Marco/Volcano Chaser
• 08.02.2024
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#iceland🇮🇸 #visiticeland #visitreykjanes #wheniniceland #reykjanes #eruption #svartsengi #dji #science #geology #basalt #eldgos #magma #lava #lavafield #hraun #volcano #rocks #landscape #latergram #instapic #instagood #instagram #igers #igersiceland #reeloftheday #reels #reelsinstagram

#19632

That magma explanation is way more fun to read in the voice of Dr Evil, given his penchant for discussing such topics. 

It's breathtaking, I suggest you try it.

#19633
4 hours ago, honolulu horn said:

That magma explanation is way more fun to read in the voice of Dr Evil, given his penchant for discussing such topics. 

It's breathtaking, I suggest you try it.

Was gonna neg rep you for falsely claiming his penchant is for discussing science when it's in fact, for buggery.  But pos rep for 'breathtaking'

  • Popular Post
#19637

 

If you've ever wondered how a longhorn manages to steer its way through tough terrain .. here you go. They are very, very aware of where their horns end and how to maneuver through a crowded space. https://t.co/A1RoWzwwrr

 

 

#19640
Train Splits Amazon truck in half 😳😳😳😳— Shannonnn sharpes Burner (PARODY Account) (@shannonsharpeee)

 

#19643
On 2/11/2024 at 3:18 AM, futureman said:

Nutty Putty has always creeped me out but still I could read about it and watch vids on it without any sort of visceral reaction.  This, though, I had to stop watching.  3:20-7:30 is about the most awful shit I’ve seen on the internet in my whole life.

Ok--that's terrifying.

But I have to observe . . . and I really can't believe I'm the first one to say this . . . I'd like to slide into the Widow Emily's tight spaces.

#19644
4 hours ago, Mittens said:
Train Splits Amazon truck in half 😳😳😳😳— Shannonnn sharpes Burner (PARODY Account) (@shannonsharpeee)

 

Seatbelts save lives. 

#19646
21 hours ago, Hornius Emeritus said:

 

500 tires were needed to move one of the world's largest hydrocracking reactor. 🤯

 

 

What the fuck?  I'm pretty smart, but I have zero knowledge on this thing.

 

For fixed-bed hydrocracking units, proper feedstock preparation is necessary to minimize catalyst poisoning and give high yields and a long catalyst life. Many hydrocracking units use a hydrotreating reactor before the hydrocracking reactors to convert organic sulfur and nitrogen compounds to hydrogen sulfide and ammonia to prevent reduction of hydrocracking catalyst activity and deterioration of yield structure. During a run, the reactor temperatures are gradually increased to maintain a constant severity of operation (constant degree of sulfur or nitrogen removal or constant conversion level). Increasing the reaction temperature increases the cracking rates faster than the hydrogenation rates, and more of the feed is cracked to gases and coke. This results in lower yields of desirable products and less profitable operations.

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