This PowerPoint presentation will enlighten students in terms of the discovery of radio waves. This also talks about the life of Heinrich Rudolf Hertz.

1. Cute Doodly Pastel
Science Lesson
for Middle School
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Good Afternoon!

2. HERTZ
The Electromagnetic Spectrum
Prepared by: Group 3

3. Heinrich Hertz
 Full Name: Heinrich Rudolf Hertz
 Born: February 22, 1857
(Hamburg, Germany)
 Died: January 1, 1894 (Bonn,
Germany)
 Subject of Study: electromagnetic
radiation, radio wave

4.  His mother was Elizabeth Pfefferkorn Hertz and
his father was Gustav Hertz, a respected lawyer
who would later become a legislator.
 Hertz was the firstborn of the five children.
Family Background

5.  At an early age, Hertz displayed an interest in
building things, and as a teenager he constructed a
spectroscope and a galvanometer.
 Initially Hertz planned a career in engineering, but
after several courses in his life (like architecture and
army) , he finally decided to pursue Science.
Educational Background

6.  In 1877, he studied various scientific treatises and he
gained some laboratory experience by working with
Gustav von Jolly.
 He also enrolled at the University of Berlin, where
he was privileged to study under the great German
physicist Hermann von Helmholtz.

7.  In August of 1879, Hertz won the prize for his
evidence demonstrating that electricity had no
inertia.
 Hertz also embarked on a study of induction
produced by rotating spheres during his education.
His work in this area helped him earn his doctorate
degree in 1880, graduating as “Magna Cum
Laude”.

8.  Hertz’s first academic post was as lecturer of
theoretical physics at the University of Kiel. He
was then appointed as physics professor at the
University of Bonn in 1889 in which he carried
out his most important work.
Work

9.  In 1886, Hertz began experimenting with sparks
emitted across a gap in a short metal loop
attached to an induction coil. He soon built a
similar apparatus, but without the induction coil,
to act as a detector. During this time, Hertz
developed a number of innovative experiments.
Discovery of Radio Waves

10.  With these experiments, Hertz was able to
determine that the signal exhibited a wave pattern,
and to ascertain its wavelength. Thus, it appeared
to Hertz that he had discovered a previously
unknown form of electromagnetic radiation.
 Hertz announced his initial discovery in late 1887
and published additional information in 1888.

11.  What Hertz discovered were commonly referred
to as Hertzian waves, but today it is known
as radiowaves.

12. Do you have any
questions?

13. REFERENCE
https://nationalmaglab.org/education/magnet-academy/history-of-
electricity-magnetism/pioneers/heinrich-hertz

14. Rexon Panganiban
Dave Namuco
Jimmy Barotel
Miko Flores
Erwin Alas-as
Stephanie Ramos
Kiven Llupar
GROUP 3

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