That subject sounds like something I might just make up and write about to be silly and random. But it’s actual science! Someone has actually done this!

The article explaining this starts out in a really interesting way:

Every so often, Dan Frost hears a dull thud and his office floor vibrates. It can only mean one thing: one of his experiments has exploded again. Making his way downstairs to his lab, he finds the shock is written on the faces of his colleagues still in the lab. … The odd explosion is part of the job.

Sounds like fun! Well, until it isn’t. Explosions are interesting, until they destroy things, which they are apt to do. But sometimes that’s the cost of figuring things out.

The reason for the explosions is that his team is trying to mimic the forces of Earth’s lower mantle thousands of miles underground. That is where diamonds are formed naturally. Their machine uses a piston to squeeze crystals at up to 280,000 times atmospheric pressure. To put that in perspective, your body wouldn’t do well at anything above 30 atmospheric pressures (atm). You would need a special suit and a special source of air to survive above that, because the air density changes and weird things happen. But I digress…

The second part of the process is using an anvil made of diamonds to squeeze the crystals with 1.3 million times atmospheric pressure. It uses sound waves traveling through the crystal to determine whether it is similar to the composition of the mantle, by comparing it to known seismic waves travelling through the Earth.

His experiments have led to some unexpected data about the composition of the Earth’s mantle and that there may be “oceans” of water hidden deep in the mantle. He has also learned how to make diamonds. It won’t make him rich — it takes a lot of time and energy for this process, more cost than the diamonds are worth. But it does have real-world applications in other fields.

As for converting peanut butter to diamonds, he has tried various sources for ingredients. A German TV station asked him about using peanut butter, so he tried it and it actually worked, but then “a lot of hydrogen was released that destroyed the experiment”. The article doesn’t explain what that means. Were the diamond destroyed? If so, that’s some explosion!

You could say that he made peanut butter explode. 🙂 Isn’t science interesting?