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Massimo

@Rainmaker1973

Jan 15, 2022 • 11 tweets • 6 min read • Read on X

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Hunga Tonga-Hunga Ha'apai volcano explosive activity continues. Volcanic Ash Advisory Center Wellington warned about a volcanic ash plume that rose up to estimated 52000 ft (15800 m) altitude or flight level 520 and is moving at 05 kts in N direction buff.ly/3tz5maT

NOAA NESDIS provides a coverage of the Tonga eruptions with satellite imagery from GOES West and Himawari-8 satelites: buff.ly/33A3Wly

In this Himawari-8 full disk view, a powerful shockwave can be seen during the Hunga Tonga-Hunga Ha'apai eruption. Source: buff.ly/3foKpHq

Detail of the shockwave captured by the Himawari-8 satellite during the Hunga Tonga-Hunga Ha'apai eruption. Sources reported that the explosion was heard in Fiji (800 km away) and New Zealand [satellite: buff.ly/3foKpHq] [read more: buff.ly/3tKmvPd]

Detail of the shock wave as captured by the South Pacific Islands AHI RGB Airmass [more imagery: buff.ly/3foKpHq] #Tonga

This view from the GOES WEST satellite gives a more 3D perspective of the huge volcanic ash plume that rose up to estimated 15800 m (52000 ft) or altitude or flight level 520 over the Hunga Tonga-Hunga Ha'apai volcano [all the satellites views: buff.ly/3A0omjP]

The shockwave of the Hunga Tonga-Hunga Ha'apai volcano eruption detected in Auckland, New Zealand, 2,000 km away from Tonga. The atmospheric pressure jumped 4 hPa and then fell almost 6 hPa all in about 20 mins [source, read more: buff.ly/3qsOOiX]

The Tonga Meteorological Service released this photo of the Hunga Tonga-Hunga Ha'apai volcano eruption from orbit [source: buff.ly/3I7bbAy]

https://twitter.com/Apaiss1/status/1482098899133288449

This is a view of the area around the Hunga Tonga-Hunga Ha'apai volcano seen from the International Space Station before the major eruption, on January 13, 2022

https://twitter.com/Apaiss1/status/1482098899133288449

This clip, according to the sources, documents the shockwave's 'boom' as heard in the Fiji islands, at about 700 km of distance from the Hunga Tonga-Hunga Ha'apai volcano [source: buff.ly/3ttyuQK]

I happened to check my weather station and immediately watched for updates online: apparently the one highlighted in the chart may be a pressure (or "the" pressure) oscillation related to the Hunga Tonga-Hunga Ha'apai volcano explosion that reached Europe.

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Massimo

@Rainmaker1973

Jun 19, 2023

Born 400 years ago #Today, Blaise Pascal was child prodigy, mathematician, physicist, inventor, writer and Catholic theologian. He was pioneer in the natural and applied sciences and invented one of the first mechanical calculators

[read more: buff.ly/2MDyfef]

Pascal designed and built one of the earliest mechanical calculators, known as Pascal's Calculator or Pascaline. It was a pioneering device that used gears and wheels to perform addition and subtraction. It laid the foundation for mechanical computation

He introduced the namesake Triangle, a triangular arrangement of numbers with various mathematical properties. Each number in the triangle is the sum of the two numbers directly above it.