'Lovelace wrote that they don't make a cage; in the 1820s, William Sturgeon made electromagnets out of them'
iron bars
GENERAL SCIENCE: Lovelace wrote that they dont make a cage; in the 1820s, William Sturgeon made electromagnets out of them
Lovelace wrote that they don't make a cage; in the 1820s, William Sturgeon made electromagnets out of them
Lovelace wrote that they don't make a cage; in the 1820s, William Sturgeon made electromagnets out of them
GENERAL SCIENCE
iron bars
GENERAL SCIENCE