http://www-xray.ast.cam.ac.uk/oday/agn_bh.html GO BACK Black Holes The force of gravity pulls us towards the centre of the earth. Only objects with very high speeds, like rockets, can escape earth’s gravity. Black holes have so much mass and such a high density that nothing, not...
But my favorite is the Big Nickel in Sudbury. Located at the Dynamic Earth Science Museum (which is a lot of fun), the Big Nickel was built in 1964 to pay homage to the mining industry of the area. Popular Attractions in Ontario There are so many amazing places in Ontario, and a lot...
You can’t go wrong with many places in South East Asia. Vietnam, Cambodia, Laos, Indonesia…they are all still some of the cheapest destinations to travel on earth and some of themost beautiful placesto see in the world. The Baltics The Baltics are an up and coming destination and are...
Supercharged auroras possible this weekend as colossal 'hole' in the sun spews solar wind toward Earth Can NASA's troubled Mars Sample Return mission be saved? Dead stars can celebrate 2 New Years every second with nearby cosmic fireworks NASA's Parker Solar Probe beams home 1st detailed update...
Furthermore, the failure to control water pollution problems has a significant impact on the possibility of preserving aquatic ecosystems (SDG 14) and terrestrial ecosystems (SDG 15), significantly affecting the quality of human life on Earth. (ii) Water salinization A particularly significant problem...
An illustration of the night sky on Aug. 25, 2022 showing Venus near the moon.(Image credit: Starry Night Software) Size and temperature Venus andEarthare often called twins because they are similar in size, mass, density, composition andgravity.Venusis only a little bit smaller than our h...
Recently, scientists at the National Ignition Facility (NIF) in California made significant progress in nuclear fusion research. That recent experiment has been described as recreating the power of the Sun here on Earth, which is true enough. But NIF did not recreate the entire p-p chain from...
The motion of the planets can be confusing at times.Everyone knows the Sun rises in the east and sets in the west.But this is caused by the turning motion of the Earth.Planets generally move from west to east. However, Mars will appear to move backward for about two months this year....
It is the only place on Earth where a market is actually situated on the railway itself! When the train arrives, the sellers and shoppers would quickly shift their goods to the side, and removed whatever canopies over the railway, to give way to the train to pass by. In Bangkok, if ...
The choice of Seiko was probably motivated by the fact that Compur shutters, at least the variants that would fit well into TLRs, were slowly disappearing from the earth. The 2.8GX and FX also suffer from having stiffer shutter releases than the E and F series, but this may be a small ...