👀✨ What is Parallax?
🤔 Try this first!
- Hold your finger in front of your face ☝️
- Close one eye, then the other 👁️➡️👁️
- Your finger seems to move!
👉 That “movement” is called parallax.
🌍 What is parallax?
Parallax is the change in position of an object when you look at it from two different places.
🧠 Why does it happen?
- Near objects seem to move more
- Far objects seem to move less
This difference helps our brain understand distance.
🌌 Parallax in space (stars & planets)
Scientists use parallax to:
- Measure how far stars are from Earth ⭐
How?
- Look at a star from Earth in January
- Look again in July
- Earth has moved to the other side of the Sun ☀️
The nearby star seems to shift a little compared to far stars.
📏 Bigger shift = closer star
📏 Smaller shift = farther star
🧠 Easy way to remember
Parallax helps us measure distance by seeing how things shift when we move
🌟 Fun facts for kids
- Our two eyes use parallax to see depth 👀
- Astronomers use parallax to measure space distances
- Parallax works best for nearby stars
📌 One-line summary
Parallax is the way objects appear to move when viewed from different positions, helping us measure distance.
Beyond Science 
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