IT is a little surprising to find in Dr. Shaw's paper (December 16, 1913), “. . . He (Mr. Whipple) points out that we have no special name for the unit of acceleration.” In NATURE of June 25, 1914, Mr ...

The SI system, adopted in 1960, provides a globally consistent framework for measurements. Learn about this International System of Units (SI) with a comprehensive list of all SI units and their ...

REFERRING to Mr. Keeping's letter on p. 478 of NATURE of Sept. 29, I agree that learners of the elements would be helped by a handier specification for acceleration; but a name for unit velocity would ...