Book 24, Question 127 · Video
How can a tiny camera peek down a narrow hole?
Scientists and well drillers lower a small waterproof camera on a cable into a borehole, which is a narrow hole drilled into the ground. A bright light on the camera shows the walls, cracks, water level, and layers of rock as it goes down. The pictures show up on a screen above. This lets them look at places that no person could ever fit into.
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What Crafty Clover says in this video
Intro
Hi there, curious minds! I'm Crafty Clover! Let's discover something amazing. How can a tiny camera peek down a narrow hole?
The Big Idea
Some holes are far too narrow for a person. But a tiny camera can go down! Let's peek inside a borehole.
Lowering Down
Step one: Lowering Down. Scientists and well drillers lower a small waterproof camera on a cable into a borehole. A borehole is a narrow hole drilled into the ground.
Bright Light
Step two: Bright Light. A bright light on the camera shows the walls, cracks, water level, and layers of rock. It records everything as it goes down.
On Screen
Step three: On Screen. The pictures show up on a screen above. This lets people look at places no person could ever fit into.
A Closer Look
Let's take a closer look! The camera goes down. The light shines on walls. The cable carries signals. The screen shows the view.
Quick Facts
Quick facts! Similar cameras are used to look inside pipes and engines. Borehole cameras are waterproof. They show cracks in the rock. Doctors use tiny cameras to look inside the body.
Think Like a Scientist
Now, think like a scientist! Tape a small flashlight to a long stick. Get a tall cardboard tube. Shine the light down inside it. What can you see on the walls inside? Draw what you find.
Outro
A tiny waterproof camera on a cable, with a bright light, can be lowered down a narrow borehole to show walls, cracks, water, and rock layers on a screen above. Science is amazing! Keep wondering and keep exploring! Share what you learned with someone at home, and see what they think! Crafty Clover can be found on Amazon Books, Google Bookstore, and Apple Books. Available for purchase or download! Bye for now!