Using Math to Skate On Thin Ice

Using Math to Skate On Thin Ice

– [Marten] The ice is
typically around 5 centimeters when I skate on it. That sound you hear is actually a combination of two sounds. It’s the sounds from
cracks striking beneath me and the vibrations within
the ice plate itself. It sounds like it’s something super sonic. (bright upbeat music) (skates swooshing) – Meet Märten Ajne.
– Hi I’m Märten Ajne. – [Narrator] He’s a mathematician who enjoys riskier hobbies than most. – [Marten] I been skating
on thin ice for 40 years. – [Narrator] When he’s skating though, he’s also listening. – [Märten] The thinner the
ice, the higher the pitch. Just about when the ice is to break and that will be about 3 centimeters, the pitch is at the highest singing. There’s a reportedly highest note of the Soprano singing. – [Narrator] Märten relies on his knowledge as a mathematician to calculate the thickness of the ice, its flexibility and its temperature. – [Märten] Many people tend to freak out when they see us skating on thin ice, but I couldn’t be more calm
because I know what I’m doing. Sometimes the ice is perfectly clear and I can see fish below, even a beaver, and also three
divers swimming under the ice. – [Narrator] When Märten first started there wasn’t any physics
or scientific information to explain how thin ice
skating is possible. He studied the ice for
10 years every winter to explain the phenomenon. – [Märten] I observed three
things with the thin ice: one is that the ice bends,
and the thinner it is the more advanced. The ice needs to be
flexible to support you. Second, the first crack
is a true warning signal, then I know the ice is thin. And when it gets even
thinner more cracks evoke. And finally, the ice gives sonorous tone- beautiful, eerie tone,
which immediately tells me how thick the ice is. It’s called the Coincidence Frequency, and it can be calculated mathematically. – [Narrator] Märten has skated on over 1,800 bodies of
water in North America, Norway and Central and Eastern Europe. – [Märten] I love skating
for the excitement and challenges it brings. It’s an opportunity for math
and nature to come together and make it understandable for me. I’ve been skating most of my life, and I always look forward to next weekend.

100 thoughts on “Using Math to Skate On Thin Ice

  1. I'm good at maths, but do I trust my brain this much, when plummeting into freezing water could result?… I'm not sure! 🤣

  2. thats what we need. researchers that discover something new instead of lazy people that keep repeating same experiments and trying to get more funding each time

  3. Yea he knows a lot about ice and math but people aren’t worried cos they don’t believe him. They are worried cos we are all human and human makes mistakes. And when you make mistakes on thin ice don’t be surprise that you’ll end up dying while you try to flex cos you think know so much about math.

  4. The thing is he’s hearing the after affects he is moving and by the time the ice breaks it’s behind him in the video you see him break the ice and fall down so something is wrong

  5. I like how it is a picture of Norway sweden and Finland and the place he have skated most on is sweden and he says Norway instead of Sweden. (Sorry for my bad English)

  6. I've done this, too, but am rubbish at maths.
    I just use logic, the higher that eerie pitch, the likelihood of of breaking is higher, it is a great adrenaline buzz.

  7. We all know that most of us watching this would most definitely break the ice and fall in the water if we'd try this

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