As the universe is expanding, every galaxy in existence is moving away from our own Milky Way—except for one. Andromeda,our nearest neighbor, is moving on a collision course with the Milky Way. Don’t worry, though: the collision won’t occur for several million years.
In 1922 a 14-year-old boy suffering from type I diabetes was the first person to be treated with insulin. He showed rapid improvement.
Traveling at light speed, your ship could go from New York to Los Angeles 70 times in less than one second. In that same one second you could make seven and a half trips around the earth at the equator.
Uncertianity Principle : It is impossible to know the position and motion of an elementary particle (e.g., an electron) at the same time. Werner Heisenberg discovered the Uncertianity Principle. Werner’s best subjects were mathematics, physics, and religion, but his record throughout his school career was excellent all round. In fact his mathematical abilities were such that in 1917 (when he was 16) he tutored a family friend who was at the university studying calculus.
Antimatter are particles of the same mass and composition as protons and electrons, but with an opposite electrical charge. When matter converts to energy, some residue is always left. Only part of the matter can be converted into energy. Not so with antimatter. When antimatter collides with matter, 100 percent of both matter and antimatter are converted into usable energy. A gram of antimatter would carry as much potential energy as 1,000 space shuttle external tanks carry.
The longest nerve cell in your body, the sciatic nerve, runs from your lower spine to your foot, roughly two to three feet in length!
The crust of the earth is solid. So is the inner core. But in between, the outer core and mantle (90 percent of the mass of the earth) are liquid to molten semi-solid. We do not live on a particularly solid planet.
Darwin believed that humanoids emerged in Africa. No one believed him for 50 years, until Dart uncovered his famed skull in 1924.
The Himalayas, the world’s highest mountain system, are the result of the ongoing collision of two huge tectonic plates (the Eurasia plate and the Indian subcontinent), which began about 40 million years ago.
In the bizarre quantum world, many of our “normal” laws do not apply. There, objects (like electrons) can be (and regularly are) in two different places at once without upsetting any of the laws of quantum existence.
Discovered in January 2000, the closest black hole is only 1,600 light years from Earth and is known as V4641 Sgr. Such normal black holes are several times the mass of the sun. But supermassive black holes reside in the hearts of galaxies and can be as massive as several hundred million times the mass of the sun.
Neutron : A subatomic particle located in the nucleus of an atom with the mass of a proton but no electrical charge. James Chadwick Discovered Neutrons. A neutron has nearly 1,840 times the mass of the electron.
The first commercially available antibiotic drug is Penicillin. It has saved millions of lives—tens of thousands during the last years of World War II alone. American researchers in Peoria, Illinois, were able to develop commercial production of penicillin first, because two of penicillin’s favorite foods turned out to be a strain of local Illinois corn and rotting cantaloupes, donated by a Peoria market. Those food bases helped researchers increase their production of penicillin from 400 million to over 650 billion units a month.
In 1922 a 14-year-old boy suffering from type I diabetes was the first person to be treated with insulin. He showed rapid improvement.
Traveling at light speed, your ship could go from New York to Los Angeles 70 times in less than one second. In that same one second you could make seven and a half trips around the earth at the equator.
Uncertianity Principle : It is impossible to know the position and motion of an elementary particle (e.g., an electron) at the same time. Werner Heisenberg discovered the Uncertianity Principle. Werner’s best subjects were mathematics, physics, and religion, but his record throughout his school career was excellent all round. In fact his mathematical abilities were such that in 1917 (when he was 16) he tutored a family friend who was at the university studying calculus.
Antimatter are particles of the same mass and composition as protons and electrons, but with an opposite electrical charge. When matter converts to energy, some residue is always left. Only part of the matter can be converted into energy. Not so with antimatter. When antimatter collides with matter, 100 percent of both matter and antimatter are converted into usable energy. A gram of antimatter would carry as much potential energy as 1,000 space shuttle external tanks carry.
The longest nerve cell in your body, the sciatic nerve, runs from your lower spine to your foot, roughly two to three feet in length!
The crust of the earth is solid. So is the inner core. But in between, the outer core and mantle (90 percent of the mass of the earth) are liquid to molten semi-solid. We do not live on a particularly solid planet.
Darwin believed that humanoids emerged in Africa. No one believed him for 50 years, until Dart uncovered his famed skull in 1924.
The Himalayas, the world’s highest mountain system, are the result of the ongoing collision of two huge tectonic plates (the Eurasia plate and the Indian subcontinent), which began about 40 million years ago.
In the bizarre quantum world, many of our “normal” laws do not apply. There, objects (like electrons) can be (and regularly are) in two different places at once without upsetting any of the laws of quantum existence.
Discovered in January 2000, the closest black hole is only 1,600 light years from Earth and is known as V4641 Sgr. Such normal black holes are several times the mass of the sun. But supermassive black holes reside in the hearts of galaxies and can be as massive as several hundred million times the mass of the sun.
Neutron : A subatomic particle located in the nucleus of an atom with the mass of a proton but no electrical charge. James Chadwick Discovered Neutrons. A neutron has nearly 1,840 times the mass of the electron.
The first commercially available antibiotic drug is Penicillin. It has saved millions of lives—tens of thousands during the last years of World War II alone. American researchers in Peoria, Illinois, were able to develop commercial production of penicillin first, because two of penicillin’s favorite foods turned out to be a strain of local Illinois corn and rotting cantaloupes, donated by a Peoria market. Those food bases helped researchers increase their production of penicillin from 400 million to over 650 billion units a month.