close

Вход

Забыли?

вход по аккаунту

?

Презентация

код для вставкиСкачать
ALFRED NOBEL
Alfred Nobel was born in 1835 in Stockholm,
Sweden.
His father, Immanuel,
was an inventor. After
Alfred was born, his
father went to Russia to
work. He worked with the
government and made
machinery and
explosives. Several years
later Immanuel moved his
family to Russia. Alfred
and his two older brothers
were interested in science
and enjoyed watching
their father in the
laboratory.
When Alfred was 17 years old, he traveled to
the United States and several European countries
to study.
Alfred and his father experimented with
nitroglycerin. Finally, in 1863, Alfred invented
a way to make it more safe . Scientists
everywhere praised his work. Nitroglycerin
had many good uses.
The Nobels continued to experiment to make
nitroglycerin safer. Unfortunately, in September 1864.
Alfred's brother, Emil, was killed in an explosion in
their laboratory. After the accident, Immanuel had a
stroke and was paralyzed. He died eight years later, on
the same day Emil had died.
Alfred Nobel wanted to make nitro-glycerin safe.
He built a new laboratory and continued his work. In
1867, he discovered a new material to mix with the
nitroglycerin. This material made the nitroglycerin safer
and more effective. He called his new invention
"dynamite“.
Nobel built factories all over the world. He
continued his experiments and developed new
and more powerful explosives.
He also became interested in weapons. He
developed a new type of gunpowder as well as
other materials. Nobel became very wealthy.
Документ
Категория
Презентации
Просмотров
4
Размер файла
1 088 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа