Did you know that John Dalton was born today in 1766? He was an English scientist and studied meteorology, chemistry, biology, physics, and more. John Dalton developed the idea that all matter is made up of small individual particles – of atoms. His atomic theories helped other scientists study and understand chemical reactions. John Dalton was also one of the first scientists to research color blindness. In acknowledgment of his work, color blindness is sometimes referred to as ‘Daltonism’.
We hope that you have a colorful day at school today. Remember to think kind thoughts, use kind words, and do kind things. We Love You.
During the 1700’s the only way to measure the height of a mountain was to climb it and use a barometer to estimate altitude. John Dalton spent his holidays climbing the mountain in the Lake District of England. During his excursions, he measured temperatures and humidity. Until Ordnance Survey maps were published, John Dalton was one of the few sources for information on the heights of the Lake District mountains.
Dalton’s research with gases led to what is now known as ‘Dalton’s Law of Partial Pressure. It describes how a mixture of gases interact in regards to pressure. This knowledge is used in many ways, for example, by scuba divers when they calculate the oxygen/nitrogen mixture of air in their tanks as they move between different depths in the ocean.
John Dalton kept a weather journal for 57 years with more than 200,000 entries in it!