hurricane

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20 08, 2017

What are hurricanes? Weather science

By |2019-09-05T07:56:32-07:00August 20th, 2017|Physics|0 Comments

A hurricane in Cuba - Hurricanes happen near the equator What is a hurricane? A hurricane (also called a typhoon or a cyclone) is basically a huge spinning wind. Okay, then why is there wind? All our weather articles How do hurricanes get started? Hurricanes form in the summer and especially in the fall, because they [...]

20 08, 2017

What causes wind (Hot air rises) – Wind and weather Science

By |2018-09-19T08:16:28-07:00August 20th, 2017|Physics|7 Comments

Hot air balloon - hot air rising is what causes wind Hot air is lighter than cold air When something is hot, its molecules are farther apart than when it is cold. When air is hot, its molecules are further apart, so it takes up more room. That makes hot air lighter than cold air, because the [...]

27 07, 2017

Kamakura Japan – Shoguns and Mongols

By |2019-10-22T05:01:05-07:00July 27th, 2017|History, Japan|0 Comments

First shogun of Japan: Minamoto Yoritomo (maybe), by Fujiwara Takanobu - Kamakura Japan Who was the first shogun of Japan? The first shogun, Minamoto Yoritomo, established the shogun system in the 1100s AD. All officials were pretty much military officials. Japan broke up into a lot of small kingdoms, which were always fighting each [...]

20 06, 2017

Global warming in modern times

By |2019-07-07T11:22:27-07:00June 20th, 2017|Environment, Science|0 Comments

Coal plant in China: causing global warming When did global warming start? Human activities probably started to affect the world's climate as early as about 10,000 BC. That's when people started farming and cut down a whole lot of trees to create their fields. Climate change in world history Medieval warming The Little [...]

6 06, 2017

Ancient China’s environment – Himalayas and Gobi Desert

By |2019-04-17T08:22:55-07:00June 6th, 2017|China, Environment|2 Comments

Himalaya Mountains: part of the Chinese environment China's like a staircase Sometimes people describe China's landscape as being like a staircase with three steps. The top step of this Chinese environment staircase is in the west, where the Himalaya mountains are (India is on the other side of these mountains). Himalaya Mountains India's [...]

31 05, 2017

Toregene and Kublai Khan – Mongol Empire History

By |2017-05-31T15:37:25-07:00May 31st, 2017|Central Asia, History|0 Comments

Coin of Toregene Toregene ruled the Mongol Empire for five years. By then she was not in good health - she was about 55 years old. She passed on her power to her son Guyuk in 1246 AD and went into retirement, where she died less than two years later. Mongke Khan [...]