mention a few of his technical works?
He invented the Secchi disk
Angelo Secchi
He invented the Secchi disk
what is uranus's atmosphere made out of Hydrogen and helium describe corona of hydrogen? The exosphere is unusually extended, reaching as far as several Uranian radii from the planet. It is made mainly of hydrogen atoms and is often called the hydrogen corona of Uranus how is it explored? UNANSWERABLE who discovered the planet? The first spectra of Uranus were observed through a prism in 1869 and 1871 by Angelo Secchi and William Huggins
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Angelo Secchi [SEP] Other scientific and technical work
Secchi was active in oceanography, meteorology, and physics, as well as astronomy. He invented the Secchi disk, which is used to measure water transparency in oceans, lakes and fish farms. He studied the climate of Rome and invented a "Meteorograph" for the convenient recording of several categories of weather data. He also studied the aurora borealis, the effects of lightning, and the cause of hail. He organized the systematic monitoring of the Earth's magnetic field, and in 1858 established a magnetic observatory in Rome. Secchi also performed related technical works for the Papal government, such as overseeing placement of sundials and repair or installation of municipal water systems.