Newsletter for Friday 3 August

 

 

TODAY IN SCIENCE HISTORY

NEWSLETTER - AUGUST 3

Before you look at today's web page, see if you can answer some of these questions about the events that happened on August 3. Some of the names are very familiar. Others will likely stump you. Tickle your curiosity with these questions, then check your answers on today's web page.

Today'sScience Store pick ... Yesterday's pick:  For picks from earlier newsletters, see the Today in Science Science Store home page.

Quotations for Today

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QUIZ

Births

Donald Redfield Griffin, born 3 Aug 1915, is an American biophysicist and animal behaviourist known for his research in animal navigation, acoustic orientation, and sensory biophysics. During WW II, he applied physiological principles to the design of such military equipment as cold-weather clothing and headphones. In 1938, began studying bat ecolocation, or how could the bat ears replace eyes in flight guidance. He worked with G. W. Pierce, who had specialized high-frequency sound equipment. In this way they found that bats were issuing sounds. The horseshoe bat's frequency range of 60 - 120 kHz is well above the limit of human hearing (15-20 kHz). Griffin also worked extensively on bird navigation. In the late 1940s, he observed the flight paths of gannets and gulls.  How did he observe the flight paths of these birds ?

An American inventor, born 3 Aug 1811, devised the safety passenger elevator. Can you name this man ?

Deaths

Emile Berliner (1851-1929) was a German-born American inventor who made important contributions to telephone technology and with an invention in a different area, replaced one of Edison's household inventions. What household item did Berliner improve over Edison ?

Sir Richard Arkwright (1732-1792) was an English textile industrialist and inventor whose use of power-driven machinery and employment of a factory system of production were perhaps more important than his inventions. Nevertheless, Arkwright's invention, known as the Water Frame was an important contribution to the industry. What was the function of the Water Frame?

Events

On 3 Aug of a certain year, the first crop dusting from an airplane occurred when John Macready used an airplane to dust a six acre grove in Troy, Ohio to kill caterpillars. In what decade did this take place ?

On 3 Aug 1769, The La Brea Tar Pits were first noticed by European explorers. Where are the La Brea Tar Pits?

Answers

When you have your answers ready to all the questions above, you'll find all the information to check them, and more, on the August 3 web page of Today in Science History Or, try this link first for just the brief answers.

Fast answers for the previous newsletter for August 2: Elisha Gray; the scattering of light by small particles of water; English Channel; Alexander Graham Bell; wire rope powered by a steam engine.

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