1908 in science

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The year 1908 in science and technology involved some significant events, listed below.

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Archaeology

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Earth sciences

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History of science

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<span class="mw-page-title-main">Tunguska event</span> 1908 meteor air burst explosion in Siberia

The Tunguska event was a large explosion of between 3 and 50 megatons that occurred near the Podkamennaya Tunguska River in Yeniseysk Governorate, Russia, on the morning of 30 June 1908. The explosion over the sparsely populated East Siberian taiga flattened an estimated 80 million trees over an area of 2,150 km2 (830 sq mi) of forest, and eyewitness accounts suggest up to three people may have died. The explosion is generally attributed to a meteor air burst, the atmospheric explosion of a stony asteroid about 50–60 metres wide. The asteroid approached from the east-south-east, probably with a relatively high speed of about 27 km/s (60,000 mph). Though the incident is classified as an impact event, the object is thought to have exploded at an altitude of 5 to 10 kilometres rather than hitting the Earth's surface, leaving no impact crater.

1908 (MCMVIII) was a leap year starting on Wednesday of the Gregorian calendar and a leap year starting on Tuesday of the Julian calendar, the 1908th year of the Common Era (CE) and Anno Domini (AD) designations, the 908th year of the 2nd millennium, the 8th year of the 20th century, and the 9th year of the 1900s decade. As of the start of 1908, the Gregorian calendar was 13 days ahead of the Julian calendar, which remained in localized use until 1923.

The year 1919 in science and technology involved some significant events, listed below.

The year 1868 in science and technology involved some significant events, listed below.

<span class="mw-page-title-main">Charles Dillon Perrine</span> American astronomer (1867–1951)

Charles Dillon Perrine was an American astronomer at the Lick Observatory in California (1893-1909) who moved to Cordoba, Argentina to accept the position of Director of the Argentine National Observatory (1909-1936). The Cordoba Observatory under Perrine's direction made the first attempts to prove Einstein's theory of relativity by astronomical observation of the deflection of starlight near the Sun during the solar eclipse of October 10, 1912 in Cristina (Brazil), and the solar eclipse of August 21, 1914 at Feodosia, Crimea, Russian Empire. Rain in 1912 and clouds in 1914 prevented results.

<span class="mw-page-title-main">Gustav Mie</span> German physicist (1868–1957)

Gustav Adolf Feodor Wilhelm Ludwig Mie was a German physicist. His work included Mie scattering, Mie potential, the Mie–Grüneisen equation of state and an early effort at classical unified field theories.

<span class="mw-page-title-main">Solar eclipse of October 3, 2005</span> 21st-century annular solar eclipse

An annular solar eclipse occurred at the Moon's descending node of the orbit on October 3, 2005, with a magnitude of 0.958. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide. Occurring only 4.8 days after apogee, the Moon's apparent diameter was smaller. It was visible from a narrow corridor through the Iberian peninsula and Africa and Brazil. A partial eclipse was seen from the much broader path of the Moon's penumbra, including all of Europe, Africa and southwestern Asia. The Sun was 96% covered in a moderate annular eclipse, lasting 4 minutes and 32 seconds and covering a broad path up to 162 km wide. The next solar eclipse in Africa occurred just 6 months later.

Lake Cheko is a small freshwater lake in Siberia, near the Podkamennaya Tunguska River, in what is now the Evenkiysky District of the Krasnoyarsk Krai.

Leo Buerger was an Austrian American pathologist, surgeon and urologist. Buerger's disease is named for him.

<span class="mw-page-title-main">Solar eclipse of March 9, 2016</span> Total eclipse

A total solar eclipse took place at the Moon's descending node of the orbit on March 8–9, 2016. If viewed from east of the International Date Line, the eclipse took place on March 8 (Tuesday) and elsewhere on March 9 (Wednesday). A total solar eclipse occurs when the Moon's apparent diameter is larger than the Sun's and the apparent path of the Sun and Moon intersect, blocking all direct sunlight and turning daylight into darkness; the Sun appears to be black with a halo around it. Totality occurs in a narrow path across Earth's surface, with the partial solar eclipse visible over a surrounding region thousands of kilometres wide. The eclipse of March 8–9, 2016 had a magnitude of 1.0450 visible across an area of Pacific Ocean, which started in the Indian Ocean, and ended in the northern Pacific Ocean.

<span class="mw-page-title-main">Solar eclipse of October 14, 2004</span> 21st-century partial solar eclipse

A partial solar eclipse occurred on October 13–14, 2004. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. A partial solar eclipse occurs in the polar regions of the Earth when the center of the Moon's shadow misses the Earth. It was the 54th eclipse of the 124th Saros cycle, which began with a partial eclipse on March 6, 1049 and will conclude with a partial eclipse on May 11, 2347.

<span class="mw-page-title-main">Solar eclipse of August 12, 2026</span> Total eclipse

A total solar eclipse will occur at the Moon's descending node of the orbit on Wednesday, August 12, 2026, two days past perigee, in parts of North America and Europe. The total eclipse will pass over the Arctic, Greenland, Iceland, Atlantic Ocean, northern Spain and very extreme north eastern Portugal. The points of greatest duration and greatest eclipse will be just 45 km (28 mi) off the western coast of Iceland by 65°10.3' N and 25°12.3' W, where the totality will last 2m 18.21s. It will be the first total solar eclipse visible in Iceland since June 30, 1954, also Solar Saros series 126, and the only one to occur in the 21st century as the next one visible over Iceland will be in 2196. As lunar perigee will occur on August 10, 2026, two days before the total solar eclipse, the Moon's apparent diameter will be larger.

<span class="mw-page-title-main">Solar eclipse of March 7, 1970</span> Total eclipse

A total solar eclipse occurred on Saturday, March 7, 1970, visible across most of North America and Central America.

<span class="mw-page-title-main">Solar eclipse of March 9, 2035</span> Future annular solar eclipse

An annular solar eclipse will occur on March 9, 2035. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.

<span class="mw-page-title-main">Solar eclipse of June 8, 1918</span> Total eclipse

A total solar eclipse occurred on Saturday, June 8, 1918. The eclipse was viewable across the entire contiguous United States, an event which would not occur again until the solar eclipse of August 21, 2017.

<span class="mw-page-title-main">Solar eclipse of May 20, 2050</span> Total eclipse

A total solar eclipse will occur on May 20, 2050. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. A total solar eclipse occurs when the Moon's apparent diameter is larger than the Sun's, blocking all direct sunlight, turning day into darkness. Totality occurs in a narrow path across Earth's surface, with the partial solar eclipse visible over a surrounding region thousands of kilometres wide. This eclipse is a hybrid eclipse, starting and ending as an annular solar eclipse.

<span class="mw-page-title-main">Solar eclipse of May 18, 1901</span> Total eclipse

A total solar eclipse occurred on May 18, 1901. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. A total solar eclipse occurs when the Moon's apparent diameter is larger than the Sun's, blocking all direct sunlight, turning day into darkness. Totality occurs in a narrow path across Earth's surface, with the partial solar eclipse visible over a surrounding region thousands of kilometres wide. The path of totality crossed French Madagascar, Réunion, British Mauritius, Dutch East Indies, and British New Guinea.

<span class="mw-page-title-main">Solar eclipse of January 1, 1889</span> Total eclipse

A total solar eclipse occurred on January 1, 1889. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. A total solar eclipse occurs when the Moon's apparent diameter is larger than the Sun's, blocking all direct sunlight, turning day into darkness. Totality occurs in a narrow path across Earth's surface, with the partial solar eclipse visible over a surrounding region thousands of kilometres wide. It was visible across western United States, and central Canada. Partiality was visible across the northern Pacific Ocean including Hawaii, and all of the United States.

<span class="mw-page-title-main">Solar eclipse of August 21, 1914</span> Total eclipse

A total solar eclipse occurred on August 21, 1914. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. A total solar eclipse occurs when the Moon's apparent diameter is larger than the Sun's, blocking all direct sunlight, turning day into darkness. Totality occurs in a narrow path across Earth's surface, with the partial solar eclipse visible over a surrounding region thousands of kilometres wide. The totality of this eclipse was visible from northern Canada, Greenland, Norway, Sweden, Russian Empire, Ottoman Empire, Persia and British Raj . It was the first of four total solar eclipses that would be seen from Sweden during the next 40 years. This total solar eclipse occurred in the same calendar date as 2017, but at the opposite node. The moon was just 2.7 days before perigee, making it fairly large.

<span class="mw-page-title-main">Solar eclipse of May 17, 1882</span> Total eclipse

A total solar eclipse occurred on Wednesday, May 17, 1882. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. A total solar eclipse occurs when the Moon's apparent diameter is larger than the Sun's, blocking all direct sunlight, turning day into darkness. Totality occurs in a narrow path across Earth's surface, with the partial solar eclipse visible over a surrounding region thousands of kilometres wide. In locations as of present or today, totality was visible in Burkina Faso, Ghana, Niger, Nigeria, Chad, Libya, Egypt, Suez Canal, Egypt, Gulf of Aqaba, Saudi Arabia, Iraq, Iran, Turkmenistan, Uzbekistan, Tajikistan, Kyrgyzstan, China and East China Sea. Totality began in Burkina Faso and ended in East China Sea. Occurring 4.2 days after perigee, the Moon’s apparent diameter was 0.9% larger than average.

References

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