The TTL output stage is a rather complicated pushâpull circuit known as a totem-pole output (the transistors, diode, and resistor in the right-most slice of this TTL logic gate circuit). It sinks currents better than it sources current.
The theory for spontaneous generation refers to the idea that life can produced from nonliving things. Lazzaro Spallanzani proposed in his experiement that air was necessary for spontaneous generation.
role in. Giuseppe Mazzini, (born June 22, 1805, Genoa [Italy]âdied March 10, 1872, Pisa, Italy), Genoese propagandist and revolutionary, founder of the secret revolutionary society Young Italy (1832), and a champion of the movement for Italian unity known as the Risorgimento.