Jon Bergmann: Just how small is an atom?
Jon Bergmann co-wrote the book on the "flipped classroom" -- using video to help students master new ideas outside the traditional class setting. Full bio
Double-click the English transcript below to play the video.
of little tiny things called atoms
aus noch kleineren Partikeln besteht:
is made up of even smaller particles
dass Atome klein sind.
that atoms are small.
wie klein Atome tatsächlich sind?
about how small atoms really are.
wirklich, wirklich klein.
that they are really, really small.
uns folgende Frage stellen:
let's ask this question:
nur aus Stickstoffatomen besteht,
is made up of only nitrogen atoms,
Stickstoffatome in einer Grapefruit.
are nitrogen atoms in a grapefruit.
blasen wir jedes Atom
let's blow up each of the atoms
would the grapefruit have to be?
die Erde.
-- well, actually, the Earth.
die Erde mit Blaubeeren auffüllen würde,
the Earth with blueberries,
Stickstoffatome in einer Grapefruit?
of nitrogen atoms as a grapefruit?
wirklich, wirklich klein.
It gets even more crazy.
-- and thus the blueberry, right? --
also in die Blaubeere –
der sogenannte Atomkern,
is something called the nucleus,
wie groß wäre der Atomkern?
in the Earth,
des Atoms aus dem Physik-Unterricht,
of the atom from science class,
einem Pfeil, der zum Atomkern zeigt.
with an arrow pointing to the nucleus.
maßstabsgetreu gezeichnet,
they're not drawn to scale,
and were searching for the nucleus ...
die Blaubeere –
the blueberry --
as a two-story house.
eines zweistöckigen Hauses vor.
in der Mitte des Atoms.
in the center of the atom.
Man könnte ihn gerade so sehen.
It would just barely be visible.
wie groß der Atomkern ist,
around how big the nucleus is,
eines Fußballstadions aufblasen.
up to the size of a football stadium.
of a football stadium,
eines Fußballstadions vor,
in the center of the atom,
and you could see it!
Und du könntest ihn sehen!
of a small marble.
blown your mind by now.
aus Protonen, Neutronen und Elektronen.
neutrons and electrons.
live inside of the nucleus,
all of the mass of the atom.
the size of a football stadium,
eines Fußballstadions ist,
and the electrons on the edge,
und Elektronen am Rand,
und den Elektronen?
and the electrons?
leerer Raum.
there are vast regions of empty space.
sind Unmengen leerer Raum.
ein paar elektromagnetische Felder,
some electromagnetic fields,
matter, it is empty.
von leerem Raum
is inside the blueberry,
die Atome in der Grapefruit.
in the grapefruit.
noch verrückter werden kann.
if I can even get more bizarre.
eines Atoms im Atomkern ist –
of an atom is in the nucleus --
of mass in the electrons,
kilograms per meter cubed.
Noch mal im englischen Einheiten.
OK, I'll put it in English units.
per cubic feet.
by one foot by one foot.
eines normalen Autos.
all of the nuclei from a typical car.
die Atomkerne in die Kiste füllen,
have to put into the box
die Dichte eines Atomkerns hätte?
the same density of the nucleus?
Vielleicht von 100?
Menschen auf der Erde.
of people in the Earth.
eigenes Auto besitzen würde –
owned their own car --
in deine Kiste stecken,
cars into your box ...
die Dichte eines Atomkerns.
the density of a nucleus.
der Erde in deine Box stecken,
every car in the world
wirklich, wirklich klein.
wie Blaubeeren in der Erde vor.
like blueberries in the Earth.
auf die Größe eines Fußballstadions auf.
of a football stadium,
eine Murmel in der Mitte.
is a marble in the middle.
riesigen Menge leerem Raum.
of vast regions of empty space.
unglaublich hohe Dichte.
in deine Kiste zu stecken.
in your one-foot box.
ABOUT THE SPEAKER
Jon Bergmann - EducatorJon Bergmann co-wrote the book on the "flipped classroom" -- using video to help students master new ideas outside the traditional class setting.
Why you should listen
Jon Bergmann is considered one of the pioneers in the Flipped Class Movement -- in fact, he co-wrote the book on the Flipped Classroom, available from ISTE Press in June 2012. Bergmann believes educators should ask one guiding question: What is best for my students in my classroom? To the best of his abilities he has done this in his two-plus decades as a high school science teacher. He received the Presidential Award for Excellence for Math and Science Teaching in 2002 and was named Semi-Finalist for Colorado Teacher of the Year in 2010. He blogs at flipped-learning.com.
He is the Lead Technology Facilitator for the Joseph Sears School in Kenilworth, Illinois.
Read about the making of "How Small Is an Atom?" >>
Jon Bergmann | Speaker | TED.com