He worked with Feynman.
Science
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- Start date
The QED manifesto was a proposal for a computer-based database of all mathematical knowledge, strictly formalized and with all proofs having been checked automatically.
https://en.wikipedia.org/wiki/QED_manifesto
https://en.wikipedia.org/wiki/QED_manifesto
Earth's inner core is likely a weird composition of superheated elements making it both liquid and solid at the same time, a study has suggested.
The materials found in the inner core of the Earth behave in this way due to the extreme conditions found there. Including huge pressure, the temperature at the center of the Earth is believed to be over 10,000 degrees Fahrenheit—as hot as the surface of the sun.
https://www.newsweek.com/earth-core-weird-superionic-state-quite-abnormal-1678881
The materials found in the inner core of the Earth behave in this way due to the extreme conditions found there. Including huge pressure, the temperature at the center of the Earth is believed to be over 10,000 degrees Fahrenheit—as hot as the surface of the sun.
https://www.newsweek.com/earth-core-weird-superionic-state-quite-abnormal-1678881
How fast is Earth moving through space?
To begin with, Earth is rotating on its axis at the familiar rate of one revolution per day. For those of us living at Earth's midlatitudes -- including the United States, Europe, and Japan -- the rate is almost a thousand miles an hour. The rate is higher at the equator and lower at the poles. In addition to this daily rotation, Earth orbits the Sun at an average speed of 67,000 mph, or 18.5 miles a second.
Perhaps that seems a bit sluggish -- after all, Mars Pathfinder journeyed to Mars at nearly 75,000 miles per hour. Buckle your seat belts, friends. The Sun, Earth, and the entire solar system also are in motion, orbiting the center of the Milky Way at a blazing 140 miles a second. Even at this great speed, though, our planetary neighborhood still takes about 200 million years to make one complete orbit -- a testament to the vast size of our home galaxy.
Dizzy yet? Well hold on. The Milky Way itself is moving through the vastness of intergalactic space. Our galaxy belongs to a cluster of nearby galaxies, the Local Group, and together we are easing toward the center of our cluster at a leisurely 25 miles a second.
If all this isn't enough to make you feel you deserve an intergalactic speeding ticket, consider that we, along with our cousins in the Local Group, are hurtling at a truly astonishing 375 miles a second toward the Virgo Cluster, an enormous collection of galaxies some 45 million light-years away.
https://stardate.org/astro-guide/faqs/how-fast-earth-moving-through-space
To begin with, Earth is rotating on its axis at the familiar rate of one revolution per day. For those of us living at Earth's midlatitudes -- including the United States, Europe, and Japan -- the rate is almost a thousand miles an hour. The rate is higher at the equator and lower at the poles. In addition to this daily rotation, Earth orbits the Sun at an average speed of 67,000 mph, or 18.5 miles a second.
Perhaps that seems a bit sluggish -- after all, Mars Pathfinder journeyed to Mars at nearly 75,000 miles per hour. Buckle your seat belts, friends. The Sun, Earth, and the entire solar system also are in motion, orbiting the center of the Milky Way at a blazing 140 miles a second. Even at this great speed, though, our planetary neighborhood still takes about 200 million years to make one complete orbit -- a testament to the vast size of our home galaxy.
Dizzy yet? Well hold on. The Milky Way itself is moving through the vastness of intergalactic space. Our galaxy belongs to a cluster of nearby galaxies, the Local Group, and together we are easing toward the center of our cluster at a leisurely 25 miles a second.
If all this isn't enough to make you feel you deserve an intergalactic speeding ticket, consider that we, along with our cousins in the Local Group, are hurtling at a truly astonishing 375 miles a second toward the Virgo Cluster, an enormous collection of galaxies some 45 million light-years away.
https://stardate.org/astro-guide/faqs/how-fast-earth-moving-through-space
Baron
ET Founder
Considering the speed that we are moving through space, as a planet, as a solar system and as a galaxy, it's amazing to me that we sense none of that as human beings. Everything and every day just appears to be so fixed, and stable, and precise. It just goes to show you that we truly don't understand much of anything in terms of the nature of our existence. The forces controlling all of this are just so far beyond our level of competence and awareness. I used to think the concept of infinity was too far out there for my brain to comprehend, but now as I get older, I can see that all of this universe that we are a part of must have taken literally forever to generate.
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