Trial & Eureka

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Trial & Eureka

Videos

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Bar pool tables lock away every ball that drops, except one. How does the table know? #pool #billiards #engineering #howitworks #learnontiktok

Push a cart too far and one wheel just stops. How does it know? #shoppingcart #engineering #howitworks #grocerystore #learnontiktok

Why did the first sliced bread have pins in it? #slicedbread #bread #engineering #history #learnontiktok

There are no blades in your garbage disposal. So what is chewing up the food? #kitchen #engineering #howitworks #plumbing #learnontiktok

Why does a hard hat float above the head? #construction #engineering #history #safety #learnontiktok

Some pliers keep squeezing long after you let go. Who is still squeezing them? #tools #engineering #howitworks #mechanic #learnontiktok

Why does the shower turn scalding when someone flushes? #shower #plumbing #engineering #howitworks #learnontiktok

A rice cooker knows the rice is done, and it has no timer. So how does it know? #ricecooker #kitchenhacks #engineering #howitworks #learnontiktok

Water runs uphill day and night on some farms, with no motor and no fuel. Who is doing the pumping? #engineering #farmlife #howitworks #offgrid #learnontiktok

Ding. Ding-ding. Every coin you dropped into an old payphone made its own sound. Who was it for? #payphone #vintage #engineering #invention #3danimation

In movies, one match soaks the whole building. So how does a real sprinkler know where the fire is? #firesafety #moviemyths #engineering #history #learnontiktok

In a storm, a farm windmill turns its blades away from the wind, all by itself. Who tells it to? #windmill #farmlife #engineering #howitworks #learnontiktok

Parking meters were once paid with washers and buttons. How did a meter learn to spot a fake? #parkingmeter #engineering #howitworks #history #learnontiktok

Every bump on a house key has a job. So why does only the right key turn? #keys #locks #engineering #history #learnontiktok

There is a tiny ball inside your soap pump. Do you know what it does? #howitworks #engineering #bathroom #satisfying #learnontiktok

Fishing reels once tied their own line into bird nests. And the harder the cast, the bigger the nest. #fishing #baitcaster #backlash #engineering #learnontiktok

Why does a little water always stay at the bottom of the toilet? #toilet #plumbing #engineering #history #learnontiktok

How does the bank drive-thru tube turn corners under the cars? #banking #drivethru #engineering #history #learnontiktok

Why does an iron click on and off when nobody touches it? #ironing #laundry #engineering #history #learnontiktok

Why did old thermostats have mercury inside? #thermostat #engineering #history #howitworks #learnontiktok