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How do record players work?
Physics, Technology Caitlin Olson 2/26/26 Physics, Technology Caitlin Olson 2/26/26

How do record players work?

Turntable? More like learn-table.

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How does the Doppler effect work?
Physics Caitlin Olson 2/12/26 Physics Caitlin Olson 2/12/26

How does the Doppler effect work?

That thing that makes cars go "neeeeyowww"

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What made old Nokia phones nearly indestructible?
Technology Caitlin Olson 2/7/26 Technology Caitlin Olson 2/7/26

What made old Nokia phones nearly indestructible?

🎵 Da-na-da-na, da-na-na-na, da-na-da-na-na 🎵

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How does your phone track steps?
Engineering, Technology, Physics Caitlin Olson 2/7/26 Engineering, Technology, Physics Caitlin Olson 2/7/26

How does your phone track steps?

I’ll walk you through it step-by-step.

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How do court reporters type so fast?
Technology Caitlin Olson 2/5/26 Technology Caitlin Olson 2/5/26

How do court reporters type so fast?

Stenographers can type at an 360 words per minute, with an accuracy rate of 99.8%.

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Who decides which emojis get made?
Technology, Language, Culture Caitlin Olson 1/22/26 Technology, Language, Culture Caitlin Olson 1/22/26

Who decides which emojis get made?

👥🎨 ➡️ 🧑‍⚖️📝 ➡️ 📲🌍

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How do cruise ships turn around?
Technology, Engineering Caitlin Olson 1/8/26 Technology, Engineering Caitlin Olson 1/8/26

How do cruise ships turn around?

Bow down to ship innovation

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How is plastic being removed from the ocean?
Technology, Chemistry, Biology Caitlin Olson 12/26/25 Technology, Chemistry, Biology Caitlin Olson 12/26/25

How is plastic being removed from the ocean?

It's pretty plast-uck (but we're working on it)

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Why do cranes have flags on them?
Culture, Policy, Technology Caitlin Olson 11/6/25 Culture, Policy, Technology Caitlin Olson 11/6/25

Why do cranes have flags on them?

Lifting heavy objects (and national pride)

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Where does trash go?
Policy, Technology, Life Skills Caitlin Olson 9/4/25 Policy, Technology, Life Skills Caitlin Olson 9/4/25

Where does trash go?

Nothing but trash talk in this one

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Can we build full-size buildings using LEGO-like bricks?
Engineering, Technology Caitlin Olson 5/8/25 Engineering, Technology Caitlin Olson 5/8/25

Can we build full-size buildings using LEGO-like bricks?

The ultimate LEGO expansion pack

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How will 3D printing organs work?
Anatomy, Technology Caitlin Olson 4/24/25 Anatomy, Technology Caitlin Olson 4/24/25

How will 3D printing organs work?

This ain’t your grandma's HP printer

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How do laser pointers work?
Physics, Technology Caitlin Olson 4/3/25 Physics, Technology Caitlin Olson 4/3/25

How do laser pointers work?

Your dog or cat may be wondering...

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How do noise-cancelling headphones work?
Technology, Physics, Music Caitlin Olson 10/10/24 Technology, Physics, Music Caitlin Olson 10/10/24

How do noise-cancelling headphones work?

Let's make some noise for noise cancellation

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Why can't robots check the "I'm not a robot" checkbox?
Technology, Engineering Caitlin Olson 9/14/24 Technology, Engineering Caitlin Olson 9/14/24

Why can't robots check the "I'm not a robot" checkbox?

Robots absolutely can check a box on command. But that checkbox is tracking way more information than a simple checkbox click to determine whether you're a human or a robot.

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How do fireworks work?
Science, Chemistry, Technology Caitlin Olson 6/27/24 Science, Chemistry, Technology Caitlin Olson 6/27/24

How do fireworks work?

Our most explosive article yet

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How does Bluetooth work?
Science, Technology, Engineering Caitlin Olson 4/11/24 Science, Technology, Engineering Caitlin Olson 4/11/24

How does Bluetooth work?

Bluetooth allows for the transferring of data between two devices over a short distance via ultra high frequency radio waves.

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Why do trains make a screeching noise?
Engineering, Physics Caitlin Olson 4/11/24 Engineering, Physics Caitlin Olson 4/11/24

Why do trains make a screeching noise?

Chugga-chugga-choo-screech

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How do thermal printers work?
Life Skills, Science, Technology, Chemistry, Engineering Caitlin Olson 2/22/24 Life Skills, Science, Technology, Chemistry, Engineering Caitlin Olson 2/22/24

How do thermal printers work?

Heat + ink + paper = receipt

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How are magnets manufactured?
Engineering, Technology, Science, Physics Caitlin Olson 1/11/24 Engineering, Technology, Science, Physics Caitlin Olson 1/11/24

How are magnets manufactured?

It takes a powerful magnet to make lots of other magnets.

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