Wiggling metal beams offer a new way to test gravity’s strength
The fundamental constant “Big G” is poorly known
![apples falling with motion blur](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2022/07/070822_ec_gravity_feat.jpg?fit=1030%2C580&ssl=1)
Newton’s gravitational constant — or “Big G” — determines the strength of gravity, affecting how objects like these apples fall. But Big G is hard to precisely pin down. A new technique could eventually help cut down on that wiggle room.
nastenkapeka/iStock/Getty Images Plus, adapted by E. Otwell