What happens when you push a lit sparkler through an egg? 🥚🧨
In this experiment, Alex Dainis explains why the sparkler doesn't fizzle out and keeps burning straight through the egg. Most fires rely on oxygen from the surrounding air, sparklers are self-oxidizing. They release the oxygen needed to keep the reaction going, even inside the egg. That's also why you can't simply blow a sparkler out!
How many red, white and blue LEDs can you light up with 250 coins?
Alex Dainis built a battery using 250 coins, electrolyte-soaked paper towels, and parafilm, generating an impressive 18 volts. But high voltage isn't everything. The long battery also had so much internal resistance that it couldn't deliver enough current to light an LED. By splitting it into several smaller batteries, each producing about 3 volts, she reduced that resistance enough to light all three LEDs.
Did you know that an entire microscopic world lives between each grain of sand? 🏝️
Quinten Geldhof, also known as Microhobbyist, shows us how each grain can hold tens to thousands of bacteria, and how the organisms feed on them. These microbial residents act as a filter as the tide moves in and out, processing debris as it passes through!
Ever wondered why a balloon can stay inflated without being tied? 🎈
Greg Wolf demonstrates how atmospheric pressure can keep a balloon inflated without trying it. Using a simple bottle experiment, he reveals why trapped air prevents a balloon from inflating, and how changing the pressure lets the invisible force of Earth’s atmosphere do the work. It’s a fascinating physics demonstration that shows the power of air pressure in action.
Did you know pineapple eats Jell-O? 🍍
Alex Dainis explains how to bypass this and make a pineapple Jell-O mold! The fruit contains an enzyme called bromelain that breaks down proteins, effectively breaking apart the Jell-O when mixed! You can often deactivate enzymes with heat, so if you cook the pineapple, you can make the bromelain ineffective, and add it to your Jell-O!