The Eratosthenes experiment Created by : Gyula Nyerges Created by : Gyula Nyerges.
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Transcript of The Eratosthenes experiment Created by : Gyula Nyerges Created by : Gyula Nyerges.
The Eratosthenes The Eratosthenes experimentexperiment
The Eratosthenes The Eratosthenes experimentexperiment
Created by :Created by :
Gyula Nyerges Gyula Nyerges
Created by :Created by :
Gyula Nyerges Gyula Nyerges
How can we measure Earth??How can we measure Earth??
Is Earth really round? Is Earth really round?
Lunar eclipse Lunar eclipse The shape of the The shape of the Earth's shadow Earth's shadow always looks like always looks like an arc of a circle.an arc of a circle.
The The dimensions dimensions
of Earth of Earth
Eratosthenes' Eratosthenes' measuremeasure
The web site of the experiment...The web site of the experiment...
The The announcement announcement appeared on appeared on the Internet in the Internet in spring.spring.
...and the Hungarian version ...and the Hungarian version
Translation Translation only took a only took a few days.few days.
The measuring The measuring
We marked the shadows of the sticks in every five minutes.
Data analysis Data analysis The distance between
the Sun and the zenith: 26°30' +/- 30'
A different method A different method
We can read the angle on the protractor right away.
Studying sunspots Studying sunspots
There was even There was even some time for some time for telescopic work.telescopic work.
CCompetitionompetition
Czeech Republic
Hungary
CCompetitionompetition
Hungary
Hungary
Romania
Czech Republic
CCompetitionompetition
PolandHungary
Hungary Czech Republic
CCompetitionompetition
KoreaCzech Republic
Macedonia Hungary
THE ENDTHE END