We may scorn superstitions such as eclipses, but few people are not afflicted by some irrational belief. The atheist may gesture at religion as a case in point. A baseball player may always put on his left sock first, or insist on being the last out of the tunnel onto the diamond. Professors of logic may avoid walking under ladders or look askance at black cats. Recognizing that superstitions exist can lead to personal advantages if you must enter lotteries, choose among your numbers 13 and multiples thereof, because relatively few others will do so, and so you would not have to split any prize you won.
In the otherwise flat surface of the bed. If a marble is now placed near the baseball, it will roll along the curved surface into the depression. The bending of its environment made by the baseball therefore creates an attraction between the baseball and the marble. Now suppose we replace the baseball with a bowling ball. It will make a bigger depression and the marble will roll in further and be moving faster as it hits the bottom. We therefore infer from the analogy that the strength of the attraction between the bodies depends on the amount by which the surface is curved. Gravity also behaves this way, according to the general theory of relativity. According to that theory, mass creates a curvature of space, and gravitational motion occurs as bodies move along the curvature.11
This is where finding a good astronomy club can be vital. Remember that not only must the site you select be dark but it must also be safe. After joining a local astronomy club when I moved to Delaware, I learned that they had access to a dark sky site at Tuckahoe State Park, not far across the border in Maryland. I could also set up shop about fifty feet from my house where trees would not interfere though streetlights make deep sky viewing very difficult. The dark sky site is on a baseball field in the center of the park and is dark enough to draw large crowds annually to the club's two large annual star parties. Thus I have sites and opportunities for doing both casual stargazing and also for doing deep sky work under as close to ideal conditions as one can find on the east coast. The next challenge then becomes getting all that equipment to the site. Here it becomes vitally important to ensure that all your equipment is stored in an organized way.
African town of Bloemfontein, where he spent the next three years working on a spectrographic survey of the southern sky for stars and nebulae showing hydrogen emission lines. When not occupied with his work, he took time out to play rugby, organise a small baseball league, and enjoy long cross-country hikes. Following his return to the United States, he became a candidate for a doctorate in physics at the University of Michigan, and his survey plates of the southern skies not only formed the basis for his thesis, but of his life's work beyond that.
All of the physics we have done so far involved objects falling or being thrown straight up and then falling. These are called one-dimensional problems because the position of the object can be described by one number (for instance, the height). Even in that case, our one coordinate would have been ambiguous without the choice of a coordinate system. Our height function x(t) measured distance along some vertical axis whose origin was located at sea level (or perhaps at the height of Nolan Ryan's arm, if we are solving for the motion of a baseball).
The director, Irving Kershner, uses a pneumatic sound to suggest a door opening. In actuality, this sleight of hand was a single shot of a closed door cut straight to an open door without any intervening movement (Chion, 1994). Chion refers to synchresis as being the bonding of a sound to a visible source. This allows Foley artists to replace human heads with watermelons in horror films when a character's head explodes, and baseball bats hitting leather baseball gloves stand in for human punches. This is a form of analogy, where isomorphic or iconic sounds can stand in for real-world sounds, as long as they match the audience's perception ofwhat the source's timbre and dynamics should be.
During the mission, Leslie had ample opportunity to work with the GFFC, which consisted of two 'hemispheres' - a baseball-sized one, made from stainless steel, mounted inside a larger, transparent one of sapphire - both of which were affixed to a turntable. A thin layer of silicone oil filled the gap between the hemispheres. During operations, the temperatures of both hemispheres, together with the rotation speed of the turntable, were minutely adjusted by the experiment's computer, which also introduced thermally driven motions into the oil. This allowed physicists to simulate and model fluid flows in the atmospheres of rotating stars and planets.
The saga of the astronaut as a superman had begun and ended with the first seven astronauts, not from their doing, but because the public demanded a space legend. With the Apollo program, it became clear that the astronauts were exceptional men, but human. Even though selection policies tended to produce a type, the crews included diverse personalities. Some were informal and convivial, some serious and tending toward the scientific in outlook, some difficult to deal with, others easy of access. Some astronauts were extremely courteous to the ground crew, totally cooperative others were not. Some challenged the test teams to softball games or went fishing with them, while others remained aloof. But while the men on the pad knew this, the nation as a whole and the world at large saw a different picture -a group of all-Americans who, if not supermen, had nary a failing among 'em.
Down to zero thickness is nothing more than an academic fantasy. As for photons, comparing them with material particles such as bullets or baseballs is an unjustified intuitive leap. We cannot bring a photon to rest, nor can we shoot a bullet or throw a baseball at the speed of light. As they might say in certain places, Baseballs and photons ain't the same animals.
Greg Bothun is a northwesterner, educated in Washington State, briefly a professor at the University of Michigan, and now a long-time professor of astronomy at the University of Oregon. Greg, nicknamed ''Dr. Dark Matter'' by his friends, is interested (when not raising his two sons, hiking, playing softball, or golfing) in galaxy evolution and studies of large-scale structure in the Universe. In what follows Greg takes us on a very special journey that he traveled, to find the dim, lurking giants of galactica, the so-called low surface brightness galaxies.
Appointments were made with a doctor, then a specialist. After all the tests came back, it was learned that Hawking had an incurable motor neuron disease known as amyotrophic lateral sclerosis (ALS). In the United States, it is known as Lou Gehrig's disease, after a famous New York Yankees baseball player from the 1920s-30s who contracted the disease and quit baseball in 1939. The specialists gave Hawking two years to live.
Despite such a sage warning from the famous baseball philosopher, this chapter provides a comprehensive look at tomorrow and where the applications of advances in space technology might take the human race. For intellectual convenience, we will divide tomorrow into three parts the near term (the next 10 or so years), the midterm (between 10 and 50 years into the future), and the far term (from the mid-twenty-first century out to 2101 and beyond). With this somewhat arbitrary division of the future, we can comfortably engage in the reasonable extrapolation of current technology into the near term, exercise a slight stretch of the imagination to generate the midterm projections, and then marshal our deepest creative talents to entertain several far-term possibilities.
With the winter Milky Way mounting high in the sky in late January evenings, it is a good time to locate a bright constellation that represents both a star lore mystery and high mythological drama. I'm speaking of Auriga the Charioteer, a pentagonal figure that resembles either a squatty roofed house or a crude baseball home plate, whichever form you prefer.
When finally assembled, the crawler-transporter would not have won any awards for beauty. From a distance it looked like a steel sandwich held up at the corners by World War I tanks. Each crawler- transporter was larger than a baseball infield and weighed about 2,700 metric tons. Two 2,750 horsepower diesel engines powered 16 traction motors, which moved the four double-tracked treads. Each tread had 57 shoes. Each shoe, 0.3 x 2.3 meters, weighed close to 900 kilograms. Quite naturally, a great deal of experiment and readjustment preceded the final success of such treads. Because of their importance and cost, they were nicknamed, Them Golden Slippers. Many people recalled the next line of that song Golden shoes I'm going to wear, to walk that golden street. 1_5 The crawlerway would be such a street.
Now consider one of my favorite pitchers, Nolan Ryan, whose fast ball was clocked at 100.9 mph on August 20, 1974. Common sense tells most people that a pitched baseball takes longer to land than one just released to fall straight down from the same point at the same time. They would be wrong both balls reach the ground at exactly the same time. Common sense tells most people that if two planets, one with half the mass of the other, were orbiting the Sun at the same distance, they would be moving at different speeds in order to stay in the same orbit. Not so. As we saw in the preface, the planets would have identical speeds.
Some time before his graduation, he had become interested in medical science, but it was certainly not his primary focus at that time. ''My entry into medicine was due entirely to a close friend, who explored medicine as a means of pursuing an interest in psychology and psychiatry. Sadly, I got into medical school easily and he did not.'' While his studies at Houston's Baylor University now occupied the better part of every week, Holmquest would always set aside some leisure time to pursue his favourite outside activities. ''Most of my close friends in my teens were from church rather than school. While I was not all that serious about religion, our church group was very close. It was my main outlet for athletics in that we had great baseball and basketball teams and lots of social events.''
Let t denote the number of seconds from the time that one has thrown a baseball straight up from the Earth's surface. Let x(t) denote the height of the ball at time t. The height turns out to be given by the following form (a parabola or quadratic function) Therefore, the correct physical interpretation of ag is that it is the rate of change of velocity, otherwise known as acceleration. If a person tries to jump up from the surface of the Earth with initial velocity 1 meter second (m s), they might hope to continue flying away at 1 m s forever. If so, they will be disappointed. Gravity will quickly set to work adjusting their velocity in favor of a return to the Earth. The velocity will drop from 1 to 0.5 to 0.2 and then to zero, at which point it will actually become negative and they will fall back to Earth. The same thing happens to Nolan Ryan's baseball, thrown straight up. Thus, the constant ag is something that adjusts the velocity and is directly related to the strength of...
Peter Challis is a big bear of a guy. Sitting in the air-conditioned computer room at the Cerro Tololo Inter-American Observatory headquarters in La Serena, Chile, Pete is wearing his Center for Astrophysics T-shirt for the third day in a row, cargo shorts, and sneakers. He looks like he just stepped off an Ann Arbor Softball diamond. It's evening and the lights of the coastal city scintillate down below. Pete isn't looking. His attention is riveted to his computer screen Pete is making judgment calls on what he sees there. into another. Nuclear forces are much stronger than the electrical forces that determine the height of mountains or the bouncc in baseballs. Hven extraordinary variations in temperature or pressure don't affect the rate of change among the neutrons and protons of a nuclcus. As a nucleus emits subatomic particles in radioactive decay, it can become another element. Radioactive uranium becomes stable lead. From the relative abundances of the parent and daughter...
Arguing against light onto your observing site is a different and more difficult one. Test cases will occur but at the time of writing the way forward is not obvious but a compromise for agreed On & Off timings might work. Floodlights alight all night at a baseball or football stadium when they're only needed when games are in progress seem logical no go. Golf Driving Ranges lit all night are another pet hate for most astronomers.
SRBs ignite, I describe it as somebody taking a baseball bat and swinging it pretty smartly and hitting the back of your seat, because it's a real 'bam'. The vibration and noise is pretty impressive The acceleration level is not that high at that point, but there is that tremendous jolt and you're off ''
The smaller size of Mars, combined with a density somewhat lower than that of Earth, produces a less intense gravitational field than the one we know. Your weight on Mars would be 37 percent of your weight on Earth. If you weigh 160 pounds here, you would weigh 59 pounds there. You would be able to throw a baseball much farther on Mars than you can on Earth. While golf-loving astronauts might not be able to drive a ball as far
After getting home from work the next day, spend a little time with your equipment and see how it endured in the open. If your observing site is in an open dusty area (the infield of a baseball diamond), make certain that no dirt or grit has blown into any of your eyepieces or telescope optics. If so, clean the affected surface carefully using the compressed air in your optics cleaning kit. At the risk of belaboring previous points, it must be firmly stated again that the optical components of your oculars and telescope will not tolerate even the tiniest scratches in glass surfaces. If you do not know what to do or do not have the proper equipment for the job, it is better to leave dirt or dust in place on the lens and if it becomes intolerable, have it professionally cleaned.
I was only 11 when the Sputnik went up. Americans were already afraid of the Russians, and now we were desperately afraid. We had air raid drills in school, and were taught how to put our heads down under our desks. My father got a Geiger counter to find out if things were radioactive, and was part of the Civil Defense system. Suddenly it was good to be good at science and math. I got books every two weeks from the Bookmobile, which the county library sent around to farms. Even the library itself was brand new. We had a science fair, and I saved up my allowance, a quarter a week for a long time, to buy a Heathkit shortwave radio with five vacuum tubes. I put it together myself, but it didn't work because my soldering iron was meant for roofing, and had melted some parts. A few months later I found out how to get some new parts, and suddenly there were voices from far away. I studied the parts catalog from Allied Radio the way other kids memorized baseball statistics. I built a...
Another budding writer gained some inspiration from the eclipse of June 16, 1806, James Fenimore Cooper. The town of Cooperstown, which houses the Baseball Hall of Fame, gets its name from Cooper's family. Located on the shore of Lake Otsego in upstate New York, Cooper was there, about two hundred miles west of Bowditch in Salem, when the eclipse passed by. At the age of 16 young James could and should have been away at college, butYale had expelled him for fighting, and he had been packed off home with his tail between his legs. The eclipse certainly taught him something. Later he would write Never have I beheld any spectacle which . . . so forcibly taught the lesson of humility to man as a total eclipse of the sun. Cooper's experience was heightened by a melancholy circumstance. A local schoolteacher had been convicted of murdering one of his pupils, and after a year of
Throughout STS-8, they received daily updates from Mission Control on terrestrial events. During our flight, said Bluford, they kept me abreast of how Penn State his alma mater was doing in football and how the Philadelphia Phillies were doing in baseball. Each morning, we were awakened by a school song. We were informed about the shooting down of a Korean airliner, Dick Truly told me he was leaving the astronaut office to become Commander of the Naval Space Command and my wife sent me a message saying we had termites in our house
The repeated launch delays did not appear to have diminished the enthusiasm of Bowersox and his six crewmates - Pilot Kent Rominger, Payload Commander Kathy Thornton, Mission Specialists Cady Coleman and Spanish-born Mike Lopez-Alegria and Payload Specialists Fred Leslie and Al Sacco - as they left the Operations and Checkout Building that morning, wearing back-to-front baseball
If the Earth were the size of a marble, the Moon would be a small pea approximately 300 mm (about 1 ft) away. At present space-ship speeds, it takes 2 or 3 days to get to the Moon. On this same scale, the Sun would be about 120 m (or 400 ft) away, roughly the distance from home plate to the center-field fence in a major league baseball stadium. The distance from the Sun to Pluto would be on the order of 5 km (3 mi). We have the ability to span these distances, although it takes years to reach the outermost planets. The nearest star to our Solar System, Proxima Centauri, would be more than 32,000 km (20,000 mi) away on this same scale. Even if we can build a ship that will travel at half the speed of light, a round trip to this star will take 18 years. Our Milky Way galaxy is 25,000 times wider than the distance to Proxima Centauri.
Meanwhile, Columbia herself was performing near-flawlessly on her 18th journey into space. On 23 October, Bowersox told Capcom Tom Jones and Flight Director Rob Kelso that he was impressed by her rock-steady nature. A couple of days later, the crew took time out to tape the ceremonial first pitch for Game Five of the baseball World Series. Uniquely, it marked the first time that the thrower -Bowersox in this case - was not actually in the ballpark for the pitch. The video from Columbia was replayed on the enormous Jacobs Field Jumbotron screen in Cleveland before the game. Before throwing the slow-spinning pitch, Bowersox wished both the Atlanta Braves and Cleveland Indians good luck the entire crew later signed their onboard baseballs and gave them to Major League Baseball to be enshrined in the Baseball Hall of Fame in Cooperstown, New York.
Named in memory of Henry Louis (Lou) Gehrig (1903-1941), professional U.S. baseball player. From 1925 to 1939 Gehrig appeared in 2130 consecutive games for the New York Yankees, a reliability record that remained unbroken until 1995. Gehrig was a consistent left-handed batsman, with a career average of 0.340, but his career was ended prematurely as a result of amyothrophic lateral sclerosis ( Lou Gehrig's Disease ). (M 27735)
Named in honor of Hideo Sato (1940- ), staff member of the National Astronomical Observatory (formerly Tokyo Astronomical Observatory) who first worked on the solar corona, later moving to the Sky Patrol Section as a night observer. His life's work is the photometry of close binaries. He is also one of the leading members of the observatory's baseball team. (M 30099)
The 'heart' of Hart's GFFC was a pair of 'hemispheres' - a baseball-sized one, made from nickel-coated stainless steel, mounted inside a larger, transparent one of sapphire - which were both affixed to a turntable. A thin layer of silicone oil filled the gap between the two hemispheres. During typical operations, the temperatures of both hemispheres, together with the rotation speed of the turntable, were minutely adjusted by the experiment's computer, which also introduced thermally driven motions into the oil. This enabled physicists to model fluid flows within the atmospheres of stars and planets.
Named in honor of Sachio Kinugasa (1947- ), Japanese professional baseball player who was called the Iron Man . From 1970 to 1987, he played 2215 games without interruption - the world record until it was broken by Cal Ripken, Jr. of the Baltimore Orioles. Throughout his 22-year professional career for the Hiroshima Toyo Carp team he had 2543 hits, including 504 home runs. Kinugasa is now a television and newspaper commentator, as well as a guest professor at the Hiroshima prefectural university. (M 34626)
The youngest of the United Kingdom's multiple discovery supernova patrollers, Mark Armstrong (born in 1958) made all of his discoveries from Rolvenden in Kent. Mark (Figure 10.4) works from home as a consultant to the U.K. magazine Astronomy Now. During his peak patrol years, from 1995 to 2004, he lived, slept, and breathed supernovae when skies were clear and often ended up with a backlog of thousands of images to check through. Mark named his first asteroid discovery, made while supernova patrolling, 15967 Clairearmstrong, after his wife, who supported him through the peak patrol years. His other asteroid discovery was numbered 44016. As Led Zeppelin are his all time favorite rock group and their guitarist Jimmy Page is his hero, he named that asteroid 44016 Jimmypage. The last time I asked Mark about that asteroid, he told me he still had not found a way of communicating this fact to Mr. Paige When I interviewed Mark for an article I was writing in 2004, he said he often had...
Baseball For Boys
Since World War II, there has been a tremendous change in the makeup and direction of kid baseball, as it is called. Adults, showing an unprecedented interest in the activity, have initiated and developed programs in thousands of towns across the United States programs that providebr wholesome recreation for millions of youngsters and are often a source of pride and joy to the community in which they exist.