l7 Flashcards
describe materials as being
composed of ultimate particles.
democritus
discovered some of the
effects of electricity
Thales
Three specific aspects of physical science helped
pave the way for the discovery of x-rays
electricity,
vacuums, and image recording materials
produced the first -recognized
vacuum.
Evangelista Torricelli
invented an air pump that was capable
of removing air from a vessel or tube.
▪Otto von Guericke
one of the first to extensively study
electricity and magnetism.
William Gilbert
(of England)
working with glass, silk and paper,
distinguished two different kinds of
electricity.
Charles du Fay
built and improved the static
generator.
isaac newton
He demonstrated a current of electricity by
transmitting electricity from a Leyden jar
through wired and a vacuum tube
william watson
In 1831, He induced an
electricity current by moving a
magnet in and out of a coil.
michael faraday
Known for Electromagnetic
Radiation and Photoelectric
Effect
Heinrich Daniel Ruhmkorff
He made a significant improvement in the
electroscope, a vessel for discharging
electricity under vacuum conditions.
Abbḗ Jean-Antoine Nollet
He conducted many electrical
experiments.
Benjamin Franklin
He conducted several experiments
with cathode rays, which are streams
of electrons emitted from the surface
of a cathode.
Johann Wilhelm Hittorf
He invented the Crookes Tube,
investigating cathode rays and
He also discovered Thallium (Tl)
William Crookes
He found that cathode rays could penetrate
thin metal and would project a few
centimeters into the air. He also studied the
deflection of rays because of magnetic fields.
Philipp Lenard
In 1890, successfully
produced one of the earliest known
radiographs, or X-ray images
William Goodspeed
He produced the first photographic copy
of written material in 1727
Johann Heinrich Schulze
He produced a film with a
gelatin silver bromide
emulsion
Richard Leach Maddox
He produced and patented
roll-paper film
George Eastman
a name
synonymous with the groundbreaking
discovery of X-rays, revolutionized both
physics and medicine. His accidental
finding in 1895 opened up a new realm of
diagnostic possibilities and paved the way
for advancements in medical imaging that
continue to shape healthcare today.
Wilhelm Conrad Roentgen
Birth of Wilhelm Conrad Roentgen
Born on March 27, 1845, in Lennep, Germany
Father of Wilhelm Conrad Roentgen
Friedrich Conrad Roentgen
Friedrich Conrad Roentgen’s occupation
cloth merchant
mother of wilhelm roentgen
Charlotte
Constanze Frowein
Charlotte
Constanze Frowein, came from a
well-
established Dutch family
roentgen’s family relocated to the
netherlands
Wilhelm Roentgen’s wife
Anna Bertha Ludwig
Anna Bertha Ludwig was born on
April 22, 1839
Roentgen asked for Bertha’s
hand in marriage
August 6, 1868
Bertha and Wilhelm were married
on
January 19, 1872
Roentgen pursued mechanical
engineering at the prestigious
Polytechnic Institute in Zurich,
Switzerland
a prominent
physicist known for his work in
acoustics and optics, became a
significant mentor for Roentgen.
August Kundt
____ influence steered
Roentgen towards the intricacies
of experimental physics, sparking
a passion that would define his
career.
August Kundt