Image: Johannes Vermeer, Woman Holding a Balance (about 1664), National Gallery of Art, Washington · CC0
A Knaph story
The Story of Mass
How people learned the difference between how much stuff a thing has and how hard the Earth pulls on it
before 3000 BCE – 2019
A heart on a balance, a crown in a bath, a clock that ran slow, a kilogram seized by pirates and a feather dropped on the Moon: how people slowly learned what mass really is.
A Knaph story
The Story of Mass
How people learned the difference between how much stuff a thing has and how hard the Earth pulls on it
before 3000 BCE – 2019
A heart on a balance, a crown in a bath, a clock that ran slow, a kilogram seized by pirates and a feather dropped on the Moon: how people slowly learned what mass really is.