Skip to main content
  1. Home
  2. Emerging Tech
  3. News

Fire versus ice: Video shows what happens when thermite meets a frozen lake

Add as a preferred source on Google

It’s one of the great philosophical brainteasers that generations of intellectuals have stroked their chins over: What happens if you detonate a whole lot of thermite on a frozen lake? That’s the question the folks behind YouTube channel Beyond the Press attempted to answer in their latest video, which follows a previous variation that introduced a red-hot, 20-kilo steel weight to the lake’s thick ice.

“The thermite versus frozen lake idea has been on my mind for quite a long time,” YouTuber Lauri Vuohensilta told Digital Trends.

Recommended Videos

As Vuohensilta noted, there are a number of popular videos online pitting thermite against ice, usually by burning the pyrotechnic powder on top of an ice block, resulting in some pretty dramatic explosions. That is (we think) because the heat from the burning thermite decomposes the water into hydrogen and oxygen, which then explodes when heated.

However, most people have not tried this experiment on such a large scale using a frozen lake.

So did it turn out to be the YouTube explosion of the century? As you will see from watching the video, not exactly.

“I wasn’t completely happy with the results,” Vuohensilta continued. “I think I am going to double the amount of thermite for the next try and use a different vessel. [But] I don’t want to overdo it because the explosion throws molten metal stuff all over the place, and I want to keep everything safe as possible.”

It’s not a waste of time, though. There is something weirdly fun about watching people investigate the quantity of thermite needed to melt through a frozen lake, even if they didn’t quite manage it on this occasion. And, hey, we now know that we want to visit Ylojarvi, Finland — provided they’re not shooting a follow-up video at that time.

Luke Dormehl
I'm a UK-based tech writer covering Cool Tech at Digital Trends. I've also written for Fast Company, Wired, the Guardian…
Google Flow Music Spaces is becoming an all-in-one AI music studio
The latest update brings song editing, stem splitting, image generation, lyrics, and video creation into a single workspace.
Google Flow Music Featured

The company has announced a major update for Flow Music Spaces, bringing a suite of new AI-powered creative tools directly into collaborative workspaces. Instead of jumping between different apps or sessions, users can now generate and edit songs, split audio stems, create images, write lyrics, and even generate videos without leaving a Space.

What's new in Flow Music Spaces?

Read more
A Florida pastor asked ChatGPT if he was okay. It nearly got him killed.
When "just relax and recover" turns out to be the worst medical advice you could get.
ChatGPT on iPhone

Scott Winters, a pastor from Florida, is suing OpenAI after ChatGPT allegedly gave him what his lawsuit calls "extremely dangerous" medical advice, advice that nearly cost him his life.

What happened to the pastor?

Read more
Scientists made robots curious like toddlers, and it helped them learn language twice as fast
Give a robot curiosity, and it starts learning language (and misbehaving) just like a toddler.
robots and kids photo

Scientists have been trying to figure out how kids pick up language so fast for decades, and a new study out of the Okinawa Institute of Science and Technology (OIST) might have cracked part of the puzzle: curiosity.

Researchers built a virtual robot with a brain-inspired neural network and set it loose in a simulated 3D world full of shapes, colors, and simple commands like "push left magenta dumbbell." 

Read more