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Bring it into focus.
Every subject looks blurry at first. RaxDo explains it step by step, in your language, until it’s sharp.
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Any subject, any level
From the Moon to an atom, step by step.
The big picture and the tiny detail, explained in the same calm voice and in your language. One continuous dive, six stops, more than eighteen powers of ten.
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Every scale, one step at a time.
Wherever you start, RaxDo begins there and goes as deep as you want to go, whether it is physics, history, maths or code.
Physics≈ 400 000 km
Why doesn’t the Moon fall on us?
The Moon is always falling towards the Earth, and always missing.
Biology≈ 10 m
Why do leaves turn yellow in autumn?
In autumn the green fades, and the yellow that was there all along shows through.
Biology≈ 8 cm
What is a leaf actually for?
A leaf is a light catcher: broad and thin, veined with water, turned towards the sun.
Biology≈ 50 µm
Where does the green come from?
Inside one leaf cell, chloroplasts hold the green, and this is where light becomes food.
Chemistry≈ 0.3 nm
What does H₂O actually mean?
Two hydrogens holding on to one oxygen: a molecule of water, which the leaf splits using light.
Physics≈ 0.1 nm
What is inside an atom?
One oxygen atom, the kind a leaf sets free: eight electrons around a nucleus you could almost miss.
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