26 study in the journal Astronomy & Astrophysics, scientists shared the discovery of a massive "shipyard" where galaxies are built, similar to the one our Milky Way grew up in. (Image credit: ESA/Herschel and XMM-Newton NASA/Spitzer NAOJ/Subaru Large Binocular Telescope ESO/VISTA. An invisible "barrier" shielding the galaxy's center Read more: Black hole jet ejected by supermassive black hole is shaped like a helix 5. This is the longest magnetic field ever detected in a galactic jet, the researchers said, and it provides a fresh view of one of the most common phenomena in the universe. The team's analysis showed that the ginormous jet was hardly a straight shooter, but rather was contorted into a bizarre "double helix" structure by a corkscrew-shaped magnetic field that blasts out of the black hole and deep into space for nearly 3,300 light-years. This year, scientists took another look at the monster object using the Very Large Array observatory in New Mexico, focusing now on the enormous jet of matter and energy blasting out of the black hole's center. In 2019, researchers released the first (and, so far, only) photograph of a supermassive black hole, a gargantuan object about 6.5 billion times as massive as the sun and located some 55 million light-years from Earth in the galaxy Messier 87. (Image credit: Pasetto et al., Sophia Dagnello, NRAO/AUI/NSF) Read more: Exceptionally rare planet with three suns may lurk in Orion's nose 4.
If confirmed by future research, this enormous world will become the first "circumtriple" planet, or planet orbiting three stars, ever detected in the universe - and will give Luke Skywalker's double-sunned home world Tatooine a real run for its money. 17 in the journal Monthly Notices of the Royal Astronomical Society, researchers built on previous data to show that a wobbly misalignment in the star system's three rings is almost certainly caused by the presence of a large, Jupiter-size planet inside one of the rings. At the center of that bull's-eye are three stars - two locked in a tight binary orbit with each other, and a third swirling widely around the other two. The star system, known as GW Orionis (or GW Ori) and located about 1,300 light-years from Earth, makes a tempting target for study with three dusty, orange rings nested inside one another, the system literally looks like a giant bull's-eye in the sky. Calçada, Exeter/Kraus et al.)ĭon't sneeze, Orion! This year, scientists found compelling evidence that the rarest type of planet in the universe - a single world orbiting three stars simultaneously - is perched on the tip of the hunter constellation's great, gassy nose. Invented in 1730 by John Haddley, it was widely used for many, many years before modernization took over.(Image credit: ESO/L. The octant made it much easier to take sightings of the sun, moon, and stars from the deck of a ship via two small mirrors which allowed the user to see the moon/sun and horizon at the same time. It enabled pirates and sailors to navigate by using the sun and North-Star through the measuring of their altitude above the horizon, and was surprisingly accurate. The Astrolabe was invented at the end of the 15th century and was in use for the next 200 years or so. There was also a piece of string knowns as “gnomon” which was stretched between the upper and lower leaves in order to be used in taking measurements. The upper two leaves show the times of day, planetary hours, and the relative positions of the planets while the lower leaf shows latitude measurements for Europe. The Diptych Dial was invented in the 17th century and served as a kind of compendium for the calculating time and direction. This needle could then be used to steer by. Lodestone is a naturally magnetic rock which magnetized when a needle was pressed against it. The lodestone was used before the advent of the compass in order to aid navigation.
Name of pirate telescope free#
Much of the time the ship’s compass would be mounted on pivoting rings called gimbals which left the needle free to move and allowed for surprising accuracy. When the compass came out of development navigation of the world’s oceans became much easier. Pirates also used telescopes to spot potential victims and enemy ships. Called the “bring ‘em near” this bit of kit allowed for the sighting of landmarks at a distance and helped the seamen to set a course in advance.
The telescope revolutionized travel around the world after its invention in the 17th century.
Take a look at the technology in use during the Golden Age of Pirates. Though they didn’t have GPS and iPhones, but they still had navigational tools which helped them to get about with ease and style.
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