crooks tube is the tube used by William crooks in his cathode ray experiment.it has a low pressure inside and it contains an anode and a cathode in each ends.the anode and the… cathode are combined by a high voltage. (MORE)
A question in which it will always get the same answer, no matter who you ask it of. If a person is straight, they'll say straight. And if a person is crooked, they'll say str…aight. It's like asking your man if he's cheating. You know he's going to say "no", no matter what, so what's the point in asking?(MORE)
Crooked: adjective: a. bent, curved, or twisting. b. dishonest or devious. Example sentences: 1a. When I was younger I had crooked teeth, …but the braces have straighten them out. 2a. They followed the crooked path into the woods and got lost. 3b. Don't buy products from that crooked man, he will take your money and leave! 4b. She invested her money with crooked people and lost all her fortunes. (MORE)
Roy Crooks (Fort Worth resident) earned his living by being a manufacture representative for 10 years covering the whole state of Texas. Products such as: Envelopes for pr…inting companies and the State of Texas, Black n Decker power tools, True Temper lawn tools, Smith & Weston fire arms, box car loads of Corning Ware, General Electric small appliances, Shakespeare fishing equipment, Toastmaster appliances, and hundreds more. However, Roy had always wanted to act but just like a lot of us we just hope, but never steer our life towards that direction. One day, Roy was called by local college to measure and bid on a carpet installation ( Roy had been in the commercial floor covering market for over 15 years). When Roy was measuring the areas, the local theater was rehearsing a play. Roy talked to the actors and ask just how does one get to act in a play. The answer given was just come to the open audition. To speed things up, Roy got a small part and the part was crucial to the play because it required a great character. Roy changed his voice, stance, and body movements, and became totally a new person. He was great in the play. Patrons greeted him and asked if his voice was always like this (voice in the play) they actually thought Roy talked like this in real life. Well, one play after another, he has played the heavy characters. He has received standing ovations at the curtain call. There's more to Roy Crooks, but then again you would never really know if he is real or in one of his characters. In one of the plays he was an Italian grand dad, his accent was so perfect, patrons wanted to know were they (local theatre) found an Italian man to do the play. While in the play "To Kill a Mocking Bird", Roy's performance was so great that the local mayor said he was his favorite actor.. Now in retirement (since 2005), he has five grand-kids living with him and his wife (Jody - married Feb 1972). Taking breaks eating out three times a week with Jody and fishing with granddaughter London at 630 acre ranch land. Roy owned a driving safety school for over 14 years, he used different voices and characters in the courses. In addition to all of the above activities, Roy maintain an insurance agency, He has had offices in Fort Worth, Texarkana, and Austin. Providing protection for mortgages and final expenses for over 45 years. (MORE)
Sir William Crookes was a British chemist who contributed to the knowledge of chemistry. One thing he did was discover an element that had a bright green emission line in …its spectrum. He named the previously unknown element thallium. (MORE)
Nationality English Gender Male Occupation physicist .
Proficient in the fields of chemistry and physics, Crookes is best remembered for his invention of the Crookes tub…e, a cathode-ray tube that was the precursor to modern television and video tubes. Crookes was born in London in 1832, the oldest of 16 children of a wealthy tailor and real estate investor. At age 16 he entered the Royal College of Chemistry in the hopes of studying organic chemistry. While there he became the assistant to August Wilhelm Von Hofmann, a position which allowed him to attend meetings at the Royal Institution. It was at one such meeting that Crookes met the eminent physicist Michael Faraday who convinced him to change his area of concentration from chemistry to physics, and particularly to optics. After graduation from the Royal College of Chemistry, Crookes briefly attempted two positions in academia: superintendent of the meteorological department at the Radcliffe Observatory in 1854, and Lecturer in Chemistry at Chester Training College in 1855. Upon his father's death he received a substantial inheritance and was able to open his own laboratory and concentrate on physics. It was not long before this investment paid off. While experimenting with spectroscopy, physics pertaining to the theory and interpretation of interactions between matter and radiation, Crookes discovered a lime green band in the spectrum of selenium, a band that belongs to no known element at that time. After several years he succeeded in isolating the element, which he named thallium (from the Greek word thallos , meaning "green twig "). At the same time, the French scientist C. A. Lamy had also isolated a sample of thallium, sparking a small controversy over who would be attributed with the discovery. Today, the discovery is usually credited to Crookes. In 1861 he published his discovery. While trying to determine the precise atomic weight of thallium, Crookes became interested in the use of vacuum tubes, which had recently been improved upon by Johann Heinrich Geissler. By placing a tiny amount of thallium within a vacuum tube and weighing it there, a very accurate measurement could be obtained. However, he noticed that the arms of the scale would occasionally jerk unexpectedly, even though no visible force was acting upon them. Crookes later discovered that very small amounts of air had remained within the tube, and when struck by sunlight or lamplight it became disrupted, thus striking and moving the sensitive scale. In order to demonstrate this phenomenon, Crookes invented a device called a radiometer, consisting of a series of four small vanes balanced upon a pin. The two sides of each vane were painted different colors--one side black, the other silver. The entire assembly was then sealedin a vacuum bulb. When light struck the vanes the black sides would heat up, causing them to turn as the excited air molecules struck them. This device was (and still is) mostly a science toy, but it was also used by Scottish physicist James Clerk Maxwell (1831-1879) to prove the kinetic theory of gases. Perhaps Crookes' most important work also stemmed from his experiments with vacuum tubes, particularly with cathode-ray tubes. At that time a great deal of research was being done on cathode rays; Heinrich Geissler (1815-1879) had invented an improved vacuum tube in which two electrodes could be placed, on eat each end. An electrical current was sent through the system, and as the air in the tube was evacuated, it would begin to glow. Crookes made further improvements to the system and in the late 1870s the first practical cathode-ray tube was designed. It was comprised of a vacuum tube with two electrodes, acathode and an anode, one at each end of the tube. When an electric current was introduced and the tube evacuated, a green glow would appear. While this effect had been observed before, it was Crookes who first noted the dark area closest to the cathode that he called Crookes' dark space. More importantly, he noted that when he placed a pivoting vane within the tube, the vane would turn slightly, as if within the current of a stream when the tube was evacuated. At the time it was not known just what made up this invisible stream. Crookes himself postulated an ultragaseous fourth state of matter that manifested itself within the tube. It was not until 1897 that English physicist Joseph Joseph J. Thomson (1856-1940) announced that a stream of electrons was created by the Crookes tube. Today, the same kind of technology exists in the electronguns used in televisions and electron microscopes. In his later years, Crookes was fascinated by the emerging field of radioactivity. After researching uranium for several years he invented an instrument designed to detect alpha-rays called a spinthariscope, which means "spark-viewer." When an alpha particle strikes the instrument's zinc sulphide covered screen, a microscopic flash of light can be observed. During his career Crookes was awarded numerous accolades, including the Royal Medal, and was knighted in 1897. For some, however, his reputation is tarnished by the fact that he was a spiritualist, publishing several papers on the validity of psychic phenomena and the occult. Read more: http://www.madehow.com/inventorbios/92/William-Crookes.html#ixzz2DUAtbSFX Source: http://www.madehow.com (MORE)
The crozier is a sign that the bishop is a shepherd who guides his flock (people) gently. Popes, however, have never carried a crozier but carry ferula which is a staff topped… with a cross. Traditionally, the ferula does not have a corpus on it, but may have other designs such as a lamb.(MORE)