TED-Ed: Why a sausage can do what your gloves cannot | Charles Wallace and Sajan Saini

The video explores the evolution of touch screen technology, starting from its invention in 1965 to its widespread use in modern smartphones. It explains the differences between resistive and capacitive touch screens, highlighting their mechanisms and applications. The video also discusses how conductivity affects touch screen interaction, including challenges faced when using gloves or wet hands. It concludes with practical insights into alternative conductive materials that can activate touch screens.

What creative solution did people find to use smartphones with gloves?

• Using a stylus

• Wielding snack sausages

• Removing the gloves

• Using voice commands

What was the primary reason resistive touchscreens were favored before the iPhone's release?

• They were easier to manufacture

• They were cheaper and more durable

• They had better image quality

• They were more responsive

How do resistive touchscreens detect touch?

• By using sound waves

• By completing an electric circuit

• By detecting light changes

• By sensing heat

Why are capacitive touchscreens generally easier to use than resistive ones?

• They require less force to operate

• They are cheaper to produce

• They are more durable

• They have better image quality

What happens when you try to use a capacitive touchscreen with wet hands?

• The screen becomes more responsive

• The screen becomes brighter

• The screen may register multiple touches

• The screen stops working