July 20, 2026

Bug guts, but make it blockbuster

Cross sectioning insects in an electron microscope with a femtosecond laser [video]

Scientist slices bug heads with a laser, and viewers are obsessed with the mad-genius vibes

TLDR: A science creator used a laser to slice insects for a close-up look inside their heads, and viewers treated it less like a lab demo and more like a mad-scientist event. The biggest comment vibe was simple hero worship: people say Ben Krasnow is awesome and worth following.

A YouTube science video about cutting insects open with a laser and peeking inside with a super-powerful microscope somehow turned into a mini fan club rally in the comments. The setup sounds like sci-fi already: a creator uses a laser “like a lightsaber” to make ultra-thin cuts through bugs, then zooms in to reveal the hidden structures inside their heads. But the real energy around this upload isn’t panic or gross-out horror. It’s pure "this guy rules" admiration.

The loudest reaction by far is simple: people think creator Ben Krasnow is an absolute legend. One standout comment basically sums up the mood, calling him “just awesome” and urging anyone even remotely into weird, hands-on science to check out his channel. That’s the heart of the drama here: not a flame war, but a full-on coronation. The community seems delighted by the mix of backyard curiosity and high-end lab spectacle, like a garage tinkerer somehow wandered into a sci-fi movie and made it educational.

There’s also an unspoken layer of dark humor baked into the whole thing. “What’s really inside an insect’s head?” is exactly the kind of question that makes viewers click, wince, and then keep watching anyway. Next to recommended videos like “CT Scanning a Furby to prove it has no soul”, the whole page has chaotic mad-science energy. And commenters? They’re eating it up.

Key Points

  • Applied Science published a video about cross-sectioning insects with a femtosecond laser.
  • The video demonstrates using the laser to cut insect specimens for internal inspection.
  • The inspection is performed with an electron microscope.
  • The description specifically highlights examining what is inside an insect’s head.
  • The video runtime shown is 37:51, with the channel listed at 883K subscribers and the video at about 1.2K views at the time displayed.

Hottest takes

"just awesome" — ktm5j
"highly recommend his channel" — ktm5j
"if anyone is into this kind of thing" — ktm5j
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