Celebrating 24 Years on the Web
Find science on or your birthday

Today in Science History Home

Short Stories of Science and Invention

A Collection of Radio Talks by
Charles F. Kettering


51.   Catching Up With Nature

     This uncanny "blind flying" ability has, from time to time, aroused a lot of speculation on the part of scientists. Comparatively recently, as I mentioned, two men at Harvard found what they believe to be the answer. Instead of theorizing thev decided to try a few simple experiments.

Wires     The two men, Dr. [Robert] Galambos and Dr. [Donald] Griffin, picked out a sound-proof room for their experiments and suspended from floor to ceiling a straight row of steel wires spaced one foot apart. Bats were set free in the room and they flew about, rarely touching the wires.

     Then they were blindfolded and this did not seem to make much difference, in fact, some of the bats did better blindfolded. But the next step indicated the bats' secret. Their ears were plugged and their eyes were left uncovered. It was very difficult now to make them fly but when they did they collided consistently with the wires. And the same thing happened when a thread was tied around their mouths and their eyes were uncovered and the ears unplugged. Apparently the bat steered by sounds from its mouth which were picked up by his ears - the eyes had little or nothing to do with it.


Thank you for sharing.
- 100 -
Sophie Germain
Gertrude Elion
Ernest Rutherford
James Chadwick
Marcel Proust
William Harvey
Johann Goethe
John Keynes
Carl Gauss
Paul Feyerabend
- 90 -
Antoine Lavoisier
Lise Meitner
Charles Babbage
Ibn Khaldun
Ralph Emerson
Robert Bunsen
Frederick Banting
Andre Ampere
Winston Churchill
- 80 -
John Locke
Bronislaw Malinowski
Thomas Huxley
Alessandro Volta
Erwin Schrodinger
Wilhelm Roentgen
Louis Pasteur
Bertrand Russell
Jean Lamarck
- 70 -
Samuel Morse
John Wheeler
Nicolaus Copernicus
Robert Fulton
Pierre Laplace
Humphry Davy
Thomas Edison
Lord Kelvin
Theodore Roosevelt
Carolus Linnaeus
- 60 -
Francis Galton
Linus Pauling
Immanuel Kant
Martin Fischer
Robert Boyle
Karl Popper
Paul Dirac
James Watson
William Shakespeare
- 50 -
Stephen Hawking
Niels Bohr
Nikola Tesla
Rachel Carson
Max Planck
Henry Adams
Richard Dawkins
Werner Heisenberg
Alfred Wegener
John Dalton
- 40 -
Pierre Fermat
Edward Wilson
Johannes Kepler
Gustave Eiffel
Giordano Bruno
JJ Thomson
Thomas Kuhn
Leonardo DaVinci
David Hume
- 30 -
Andreas Vesalius
Rudolf Virchow
Richard Feynman
James Hutton
Alexander Fleming
Emile Durkheim
Benjamin Franklin
Robert Oppenheimer
Robert Hooke
Charles Kettering
- 20 -
Carl Sagan
James Maxwell
Marie Curie
Rene Descartes
Francis Crick
Michael Faraday
Srinivasa Ramanujan
Francis Bacon
Galileo Galilei
- 10 -
John Watson
Rosalind Franklin
Michio Kaku
Isaac Asimov
Charles Darwin
Sigmund Freud
Albert Einstein
Florence Nightingale
Isaac Newton

by Ian Ellis
who invites your feedback
Thank you for sharing.
Today in Science History
Sign up for Newsletter
with quiz, quotes and more.