Smarter Every Day in Order (Still Populating)/Eyeballs vs. Bullets in SlowMo - Smarter Every Day 26
Eyeballs vs. Bullets in SlowMo - Smarter Every Day 26

Eyeballs vs. Bullets in SlowMo - Smarter Every Day 26

SmarterEveryDay4 minOct 7, 2011
When my granddad was young he lost an eye playing cowboys and indians, so tonight I'm gonna show you why you should always wear safety glasses or goggles when you're doing an experiment.
5 chapters
  • Introduction and Eye Safety Motivation(0'000'40)
    Destin's granddad lost an eye playing cowboys and indians when he was young.
    Demonstrate why wearing safety glasses or goggles is essential during experiments.
    Cow eyeballs have been stored in the refrigerator for five months for this experiment.
    Safety equipment and high-speed camera setup are ready for the demonstration.
  • Understanding Eye Structure and Vitreous Humor(0'401'45)
    • Vitreous humor is a liquid inside the eye • The eyeball contains fluid that stays in position due to inertia when the eye rotates • Floaters are particles visible against bright backgrounds like the sky
    When you rotate your eyeball, the fluid tends to maintain its position because of inertia, causing floaters to move based on fluid velocity rather than eyeball velocity.
    Floaters are difficult to track when looking at the sun because they follow an erratic pattern based on fluid movement, not eyeball movement.
    The term 'humorous' in the video title refers to vitreous humor, the fluid inside the eye.
  • High-Speed Camera Setup and Technical Equipment(1'452'17)
    Phantom v10 high-speed camera is used to capture the slow-motion footage.
    • Long flash technique is employed for proper illumination • Flash is aligned using a laser positioned in the rifle muzzle • Piezo electric transducer triggers the equipment at precise timing
    A quantum composer pulse generator is used to trigger the flash at the exact moment needed to capture the collision.
    The setup is designed to capture really cool footage of the bullet-eyeball collision in extreme slow motion.
  • Bullet vs Eyeball Collision in Slow Motion(2'173'53)
    • The eyeball experiences total destruction upon bullet impact • The external musculature holds the eyeball together despite internal damage • A spiral galaxy pattern is created from the vitreous humor
    The bullet initially remains inside the eyeball rather than exiting immediately, causing catastrophic internal damage in less than a millisecond.
    • The lens is blown out of the eyeball • The ciliary body, located just behind the lens, is visible after impact • The lens and ciliary body connections are clearly exposed
    The high-speed footage clearly demonstrates the extreme force and destruction caused by the bullet impact, burning the concept of vitreous humor damage into viewers' minds.
  • Safety Conclusion and Call to Action(3'534'28)
    Always wear eye protection, regardless of potential mockery from others.
    Be smarter than those who make fun of safety practices.
    The Slomoguys, a UK-based channel, also conducts cool experiments with Phantom cameras and neat slow-motion demonstrations.
    • Subscribe to the channel for more content • Follow up with friends about the importance of eye safety • Continue getting Smarter Every Day with regular uploads