The Science Book

EXPANDING HORIZONS 99 In 1770, Hutton built a house overlooking Salisbury Crags in Edinburgh, Scotland. Among the crags he found ...

100 JAMES HUTTON have always been the same, and therefore the clues to the past lie in the present. However, while Hutton’s insi ...

EXPANDING HORIZONS 101 of magnitude. By 1946, British geologist Arthur Holmes had made some isotope measurements from lead-beari ...

102 THE ATTRACTION OF MOUNTAINS NEVIL MASKELYNE (1732–1811) I n the 17th century, Isaac Newton had suggested methods for “weighi ...

103 Schiehallion was chosen as the site for the experiment because it was symmetrically shaped and isolated (and therefore less ...

104 See also: Carl Linnaeus 74–75 ■ Charles Darwin 142–49 ■ Gregor Mendel 166–71 ■ Thomas Hunt Morgan 224–25 I n the mid-18th ce ...

105 See also: Henry Cavendish 78–79 ■ Antoine Lavoisier 84 ■ John Dalton 112–13 ■ Jöns Jakob Berzelius 119 ■ Dmitri Mendeleev 17 ...

A CENT OF PRO 1800 –1900 ...

URY GRESS ...

108 T he invention of the electric battery in 1799 opened up whole new fields of scientific research. In Denmark, Hans Christian ...

109 compound, and so disproved the idea that life chemistry operated according to separate rules. In Paris, Louis Pasteur furthe ...

110 THE EXPERIMENTS MAY BE REPEATED WITH GREAT EASE WHEN THE SUN SHINES THOMAS YOUNG (1773–1829) A t the turn of the 19th centur ...

111 See also: Christiaan Huygens 50–51 ■ Isaac Newton 62–69 ■ Léon Foucault 136–37 ■ Albert Einstein 214–21 A CENTURY OF PROGRES ...

112 ASCERTAINING THE RELATIVE WEIGHTS OF ULTIMATE PARTICLES JOHN DALTON (1766–1844) T oward the end of the 18th century, scienti ...

113 Dalton’s table shows symbols and atomic weights of different elements. Dalton was drawn to atomic theory through meteorology ...

114 See also: Alessandro Volta 90–95 ■ Jöns Jakob Berzelius 119 ■ Hans Christian Ørsted 120 ■ Michael Faraday 121 ■ Dmitri Mende ...

115 See also: Nicholas Steno 55 ■ James Hutton 96–101 ■ Mary Anning 116–17 ■ Louis Agassiz 128–29 I n the mid to late 18th centu ...

116 SHE KNOWS TO WHAT TRIBE THE BONES BELONG MARY ANNING (1799–1847) B y the end of the 18th century, it was generally accepted ...

A CENTURY OF PROGRESS 117 Anning found a 4 ft- (1.2 m-) long skull with a curiously elongated toothed beak. His sister Mary foun ...

118 See also: William Smith 115 ■ Mary Anning 116–17 ■ Charles Darwin 142–49 ■ Gregor Mendel 166–71 ■ Thomas Hunt Morgan 224–25 ...