Flat Earth; Investigations Into A Massive 500

Copernican system of the universe, showing the firmament of the fixed stars. Aristotle, Ptolemy and Nicolaus Copernicus, from an edition of Galileo’s ‘Systema Cosmicum’ published in London in 1663. An alidade is a sighting device or pointer for angle measurement for use with a quadrant. Danish astronomer Tycho Brahe https://www.laalmeja.com/ made naked-eye observations… Brahe , shown here aged 40, made naked-eye observations that formed the basis of the first new star catalogue since Antiquity. Statue in Warsaw commemorating, Nicolaus Copernicus a Renaissance Reformation-era astronomer who formulated a model of the universe that placed the…

At this time Bellarmine viewed the theory as an elegant mathematical one which did not threaten the established Christian belief regarding the structure of the universe. He hypothesised that the moon was a world like our own and possibly inhabited. In later editions of this work he even speculated that it might be possible to visit the Moon in ‘a Flying-Chariot; in which a Man may sit’ and colonize it. Ephemerides of variable stars are therefore specified for UT as if the observer were at the Sun, and are said to be given in “heliocentric time”.

These geosynchronous satellites are very useful for continuous communications e.g. radio, telephone and TV because you can point transmitters and receivers in their direction and they are stationary relative to each other. Also, the signals can transmitted all around the globe in a fraction of a second ~speed of light. Geostationary satellites have a high orbit that takes ~24 hours to go round the Earth (e.g. at a height of km above the Earth’s surface). The stronger the force an orbiting object experiences, the greater the instantaneous velocity needed to balance it e.g. to keep it in stable orbit.

Although the extreme crescent of Venus can be seen using the naked eye, there are no historical recordings of the crescent before Galileo observed them. We now know that the surface of the Moon is cratered by billions of years of meteorite impacts, and is marked by mountains and ancient lava flows. These sketches showed that the lunar surface was rough rather than smooth, full of different areas of dark and light. This vlog style film explores how two Russian scientists, Geim and Novoselov, accidentally discovered a ‘wonder material’ called graphene. This vlog style film looks at how Charles Darwin and Alfred Wallace came up with the theory of evolution and natural selection.

This vlog style film explores the work of Sir Isaac Newton as a physicist and astronomer, and how he made one of his biggest discoveries – gravity. Map of the heavens by Danish astronomer Tycho Brahe who made naked-eye observations that formed the basis of the first new star catalogue since… Danish astronomer Tycho Brahe https://www.wikipedia.org/ made naked-eye observations that formed the basis of the first new star catalogue… Engraving depicting Henderson’s Three-Wheeled Orrery, a mechanical model of the solar system that illustrates or predicts the relative positions and… Access the best of Getty Images and iStock with our simple subscription plan.