On This Day
1865 – Astronomer Angelo Secchi demonstrates the Secchi disk, which measures water clarity, aboard Pope Pius IX’s yacht, the L’Immaculata Concezion.
The Secchi disk, as created in 1865 by Angelo Secchi, is a plain white, circular disk 30 cm (12 in) in diameter used to measure water transparency or turbidity in bodies of water. The disc is mounted on a pole or line, and lowered slowly down in the water. The depth at which the disk is no longer visible is taken as a measure of the transparency of the water. This measure is known as the Secchi depth and is related to water turbidity. Since its invention, the disk has also been used in a modified, smaller 20 cm (8 in) diameter, black and white design to measure freshwater transparency.
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Born On This Day
1923 – Mother Angelica, American nun and broadcaster, founded Eternal Word Television Network (d. 2016)
Mother Mary Angelica of the Annunciation, PCPA (born Rita Antoinette Rizzo; April 20, 1923 – March 27, 2016), also known as Mother Angelica, was a Catholic American Poor Clare nun best known for her television personality. She was also the founder of the internationally broadcast cable television network Eternal Word Television Network (EWTN) and the radio network WEWN.[1]
In 1981, Mother Angelica started broadcasting religious programs from a converted garage in Birmingham, Alabama. Over the next twenty years, she developed a media network that included radio, TV, and internet channels as well as printed media.[2] In 2009, Mother Angelica was a recipient of the Pro Ecclesia et Pontifice Award granted by Pope Benedict XVI for services to the Catholic Church.[3]
Mother Angelica hosted shows on EWTN until she had a stroke in 2001. She continued to live in the cloistered monastery in Hanceville, Alabama, until her death at age 92 on March 27, 2016 (Easter Sunday).[1]
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wikimedia
- Wikimedia Commons picture of the day for December 10 December 10, 2024Picture of the day Newly-sown fields of Zangla village on the right bank of the Zanskar River contrasting refreshingly against the stark mountains of this arid region in the Indian Himalayas. The river flows from lower left to centre through a valley that narrows into the Zanskar gorge. Elevation: river 3,510 m (11,520 ft), peaks […]
- Wikimedia Commons picture of the day for December 9 December 9, 2024Picture of the day Common crab spider (Xysticus cristatus) female with prey Carniolan honey bee (Apis melifera carnica), a subspecies of the western honey bee. Near Bled, Slovenia.
Recipes
By Betty Gold: This Clever Cooking Trick Will Seriously Upgrade Your Roasted Vegetables
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