Yesterday my husband thought he saw a cockroach in the kitchen. He sprayed everything down and cleaned thoroughly.
Today I’m putting a cockroach in the bathroom.
Alexandre Edmond BecquerelDied 11 May 1891 at age 71 (born 24 Mar 1820).French physicist who was the son of the chemist Antoine-César Becquerel and the father of physicist Henri Becquerel (who discovered radioactivity). His own experimental work was done in electricity, optics and magnetism. He measured properties of electric currents, how they arise, and discovered (1840) electric currents in certain chemical reactions initiated by light. He studied diamagnetism (1845-46). In 1855, he discovered that simply displacing a metallic conductor in a liquid would produce some electric current. He invented the phosphoroscope to measure short durations of phosphorescence of materials after exposure to bright light, and was also able to examine the spectrum of the light emanating from luminescent bodies.« |
