James Thomson Bottomley

James Thomson Bottomley
Born10 January 1845
Fort Breda, County Down, Ireland
Died18 May 1926
NationalityBritish
Alma mater
OccupationPhysicist

James Thomson Bottomley FRS FRSE (10 January 1845 – 18 May 1926) was an Irish-born British physicist.

He is noted for his work on thermal radiation and on his creation of 4-figure logarithm tables, used to convert long multiplication and division calculations to simpler addition and subtraction before the introduction of fast calculators.