1888 – In Spain, the first travel of Isaac Peral’s submarine, was the first practical submarine ever made.
Peral was the first electric battery-powered submarine, built by the Spanish engineer and sailor Isaac Peral for the Spanish Navy.[1] The first fully capable military submarine,[2] she was launched 8 September 1888. She had one torpedo tube (and two torpedoes) and an air regeneration system. Her hull shape, propeller, and cruciform external controls anticipated later designs.[citation needed] Her underwater speed was 3 kn (5.6 km/h; 3.5 mph). With fully charged batteries, she was the fastest submarine yet built, with underwater performance levels (except for range) that matched those of First World War U-boats for a very short period, before her batteries began to drain. For example, the SM U-9, a pre-war German U-boat built in 1908, had an underwater speed of 8.1kn, and an underwater range of 150 km (81 nmi) at 5.8kn, before having to resurface to recharge her batteries.[citation needed] In June 1890, Peral’s submarine launched a torpedo while submerged. It was also the first submarine to incorporate a fully reliable underwater navigation system. However, conservatives in the Spanish naval hierarchy terminated the project despite two years of successful tests. Her operational abilities have led some to call her the first U-boat.[3]
1903 – Jane Arbor, English author (d. 1994)
Jane Arbor was the pseudonym used by Eileen Norah Owbridge (8 September 1903 – 4 February 1994[1]) a British writer of 57 romance for Mills & Boon from 1948 to 1985.
She wrote doctor-nurse and foreign romances. Many of her doctor-nurse romances have been reedited with different titles, that included medical words.[2] She lived in Preston, Sussex, England.[3]
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- Wikimedia Commons picture of the day for December 27 December 27, 2024Picture of the day The Seehornsee in the Berchtesgaden Alps. On the right the normal route to the Seehorn.
- Wikimedia Commons picture of the day for December 26 December 26, 2024Picture of the day Khone Phapheng Falls, Si Phan Don, Laos. Located on the Mekong River near the border with Cambodia, at 10.7 kilometres (6.6 mi) wide, it is the widest waterfall in the world.
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