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
называемых атомами.
is made up of even smaller particles
состоят из более мелких частиц,
нейтронами и электронами.
that atoms are small.
насколько малы атомы.
about how small atoms really are.
насколько они малы.
that they are really, really small.
очень-очень малы.
let's ask this question:
зададим себе другой вопрос:
is made up of only nitrogen atoms,
из атомов азота.
are nitrogen atoms in a grapefruit.
в грейпфруте действительно есть.
let's blow up each of the atoms
увеличим каждый атом
would the grapefruit have to be?
достигнет наш грейпфрут?
-- well, actually, the Earth.
нашу планету Земля.
the Earth with blueberries,
размером с Землю черничинами,
of nitrogen atoms as a grapefruit?
атомов азота в грейпфруте.
It gets even more crazy.
Дальше будет больше невероятного.
-- and thus the blueberry, right? --
то есть нашей черничины — так?
is something called the nucleus,
что называют ядром,
in the Earth,
будут размером с черничину,
of the atom from science class,
в учебниках по физике.
with an arrow pointing to the nucleus.
от которой идёт стрелка с надписью «ядро».
they're not drawn to scale,
в настоящих пропорциях.
and were searching for the nucleus ...
и поискать там ядро...
потому что оно будет невидимым.
чтобы увидеть!
the blueberry --
as a two-story house.
с двухэтажный дом.
in the center of the atom.
It would just barely be visible.
around how big the nucleus is,
настоящий размер ядра,
up to the size of a football stadium.
до размеров футбольного стадиона.
of a football stadium,
in the center of the atom,
в самом центре атома,
and you could see it!
невооружённым глазом!
of a small marble.
игрушечного стеклянного шарика.
blown your mind by now.
neutrons and electrons.
нейтронов и электронов.
live inside of the nucleus,
all of the mass of the atom.
почти вся масса атома.
the size of a football stadium,
размером со стадион,
and the electrons on the edge,
а на границах электроны,
and the electrons?
между ядром и электронами?
Правильный ответ: «Ничего».
there are vast regions of empty space.
обширные пространства пустоты.
some electromagnetic fields,
электромагнитные поля.
matter, it is empty.
is inside the blueberry,
внутри черничины,
in the grapefruit.
if I can even get more bizarre.
Пусть это покажется ещё более странным,
of an atom is in the nucleus --
атома находится в ядре, —
of mass in the electrons,
приходится на ядро,
kilograms per meter cubed.
килограмм на метр кубический.
OK, I'll put it in English units.
Специально в английских единицах:
per cubic feet.
фунтов на кубический фут.
by one foot by one foot.
all of the nuclei from a typical car.
среднего автомобиля.
have to put into the box
уместились бы в коробке,
the same density of the nucleus?
в ней была плотность ядра?
Двух?
of people in the Earth.
сколько людей на планете.
owned their own car --
cars into your box ...
the density of a nucleus.
плотностью ядра.
every car in the world
каждый автомобиль в мире,
like blueberries in the Earth.
то он был бы Землёй.
of a football stadium,
футбольного стадиона —
is a marble in the middle.
of vast regions of empty space.
заполненных пустотой.
in your one-foot box.
в небольшую коробку.
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