How Touchscreens Work // TRAIN BRAIN

How Touchscreens Work

Why can you text with your finger, but not with a q-tip? The physics of smartphones is a complicated and amazing mixture of engineering, physics, electronics and computer science.
Support Dianna during her recovery → https://www.patreon.com/physicsgirl
Creator: Dianna Cowern
Research/Writer: Sophia Chen
Editor: Jabril Ashe & Dianna Cowern
Animations: Kyle Norby
Videography: Cathy Cowern
Thanks to Dan Walsh and Marcel Stieber
http://physicsgirl.org/
http://twitter.com/thephysicsgirl
http://facebook.com/thephysicsgirl
http://instagram.com/thephysicsgirl

Physics Girl

Physics Girl is a YouTube channel created by Dianna Cowern that adventures into the physical sciences with experiments, demonstrations, and cool new discoveries. Physics Girl has videos for every atom and eve. Mailing address: Physics Girl PO Box 9281 S...

How Touchscreens Work

Easy At Home Science Experiment!

Our brains have been tricking us!

This Cosmic Mystery Broke Physics (Until Inflation) ?

The Universe Is Speeding Up...

Hot Ice Is Real — And Easy To Make

The Band-Aid Secret Nobody Told You

Why does this ice NOT float or sink?

What substance breaks surface tension?

Water Levitates! The Leidenfrost Effect Explained

What is this mystery liquid?

I put a glow stick in Ferrofluid!

We found MUD VOLCANOS!

World's most secret mystery EXPLAINED

Dianna stands for the first time in 2 years!

I was there! At David Blaine's newest stunt!

Bill Nye EXPLAINS how to get to Mars

Hello from Dianna! - Two years in bed

We did it! Levitation is REAL

We detected it...

Dianna’s new procedure - WARNING: Needle

This Life-Hack SHOCKED me ?

What even are Brown Dwarfs??

We did it! $150k to research Long COVID

DO NOT exercise with long COVID

Exercise and Long COVID - EXPLAINED

Dianna will be Live-streaming this Saturday

Dianna shaves her hair off

We are not prepared...

World's Easiest DIY Battery Magnet Train

You can pop a soda can with a Sharpie!

Laser BOUNCES through Jell-O!

Your microwave leaks radiation

I put a smoke grenade inside an air cannon!

The bizarre physics of tops

How to curve a soccer ball

Liquid Sand Magic ?

Slow Motion Tic Tac Secret

Mystery Signal Detected!

Giant Rogue Wave HITS AN OIL PLATFORM!

World's Greatest Mystery SOLVED

Dianna is hangin in there...

Dianna Health Update from SmarterEveryDay

Fastest Punch Ever

Insane flexibility EXPLAINED

My favorite party trick EXPLAINED

David Blaine torches a HYDROGEN balloon

BOOM! I just permanently untangled my headphones

Viral riddle answered with science - FAIL

Never buy the wrong sunglasses again!

Why volcanos on Mars are MASSIVE

Viral trick you can do in any pool! EXPLAINED

Impossible tongue twister!

The biggest problem with living on Mars

We shrunk a quarter with science!

What makes up 95% of the universe?

Visiting the largest scientific facility on Earth

Dianna's restrictive diet

Make vortex rings in your pool

Why the sky is darker above a rainbow

Why can't you sing into a pipe?

Solar vs Lunar Eclipse

Bubbles have opposites - And we made them.

I shattered a wine glass with my voice!

Dianna's road to recovery

How expensive is the rarest material in the universe?

ZERO GRAVITY in a giant plane nosedive!

Did you know this about Death Valley?

Dianna cuts off her hair

Dianna's heath update from Simone

An Update On Dianna's Health

Easy fun experiment using surface tension!

The universe is SPEEDING UP

Dianna went to the E.R. last week

You won't guess what shape a bubble pops in.

You can make tea bags fly using fire!

Giant moving mud puddle tries to take out a TRAIN

Can you guess this science riddle?

FASTEST science experiment looks like magic!

Pro-skater does the IMPOSSIBLE - ft Rodney Mullen