Water Clock Blueprints,Build A Hot Tub Cabinet,Wood Tool Chest Plans Pdf,Dovetail Wood Projects - .

30.10.2014, admin  
Category: Woodworking Clock Projects

Marketed as the first clock that appreciates how people really tell the time (although there are others featured below), the It’s About Time clock rounds up or down in a pleasantly woolly manner. The Just A Moment clock gambles that we are so used to reading the hands of clocks that we know, without consulting numbers, what they should be pointing towards. Get a sense of the world turning under you with the Gear Clock – again, not so accurate, but certainly impressive and eyecatchingly neo-industrial. Straying but a little way from our obsession with a circular, clockwise face are these two examples. Reminiscent of one of Leonardo da Vinci’s exquisitve drawings, the Nautilus clock is just one of a range from designer Clayton Boyer (you can see the rest here). This Water clock from Chronarte is called Canna, and each hour is a steadily filling tube in series moving left to right, lending your day a sense of progress and momentum.
The virtual Polar clock is a concentric sweep of seamless arcs, moving quickest on the outer rim and imperceptably on the inner. The Corpus clock has absolutely nothing to do with Steven Hawking, other than he cut the ribbon at the unveiling. In this mechanical engineering project, you will build a simple water clock — much simpler than the one shown in the video! The Engineering Design Process to improve your own design and create a clock that appeals to you. In this engineering project, you will design, build, and test a water clock that can keep track of time for three hours. Make sure that the bottom container has a flat bottom to prevent water from pooling in pockets at the bottom. When you have chosen your containers, you are ready to design the other parts of your clock and assemble them.
If you had to block holes in the upper container, perform a water test to make sure that the holes are completely blocked and the container does not leak. Prepare the upper container by making a hole in the side of the container toward the bottom so that water can drain from it. If you have plugged a previous hole with plumber's putty, do not make a new hole in the same place through the putty, which will change shape slightly over time, making your hole grow larger and changing the rate at which the water drips through it. Experiment with the size of the hole to make sure that it is big enough that the water can flow freely and small enough that the water does not run out in a few minutes.
Run a quick test to make sure that the water is flowing from the upper container consistently.
You will now test and calibrate, or mark measurements on, your water clock so you can tell how much time has passed based on how far the float stick has risen.
While you measure the 1-hour distance, reset and start the kitchen timer for one hour and allow the water clock to keep dripping for a second hour. While you are measuring the distance, reset and start the kitchen timer for one hour and let the water clock continue dripping for a third hour. If your water clock did not track the second hour, review the Troubleshooting Notes for ideas on how to fix it.
For each additional trial, make sure that you add enough water to meet the original water level mark. Since it is probably the easiest problem to test and solve, you may want to try restarting the experiment using more water in the upper container first. The change in hydrostatic pressure in the upper container as the water level decreases causes a change in the water flow or rate. You use mechanical devices every day—to zip and snap your clothing, open doors, refrigerate and cook your food, get clean water, heat your home, play music, surf the Internet, travel around, and even to brush your teeth. Pre-historic man did not have a need for clocks, but as civilization evolved, that all changed. A clock is an instrument for measuring time and for measuring time intervals of less than a day - as opposed to a calendar. The clock is one of the oldest human inventions, requiring a physical process that will proceed at a known rate and a way to gauge how long that process has run. The Egyptians, by 2100 BC, had invented a means to divide the day into 24 hours using sundials or shadow clocks to measure the time of day. Water clocks were among the earliest timekeepers that didn't depend on the observation of celestial bodies. One of the oldest water clocks was found in the tomb of Amenhotep I, buried around 1500 B.C. Other Egyptian clepsydras were cylindrical or bowl-shaped containers designed to slowly fill with water coming in at a constant rate. The historian Vitruvius reported that the ancient Egyptians used a clepsydra, a time mechanism using flowing water. In order for a water clock to work properly, someone had to keep an eye on it; to make sure that no pebbles were in the bowl to increase talking time.
The first clock used gravity pulled weights which moved gears, which moved the hands of the clock. No clocks survive from medieval Europe but various mentions in church records reveal some of the early history of the clock.
The word 'clock' (from the Latin word for "bell") which gradually supersedes 'horologe' suggests that it was the sound of bells which also characterized the prototype mechanical clocks that appeared during the 13th century. Between 1280 and 1320 there is an increase in the number of references to clocks and horologes in church records, and this probably indicates that a new type of clock mechanism had been devised.
The astrolabe was used both by astronomers and astrologers, and it was natural to apply a clockwork drive to the rotating plate to produce a working model of the solar system. Simple clocks intended mainly for notification were installed in towers, and did not always require dials or hands.
The more sophisticated astronomical clocks would have had moving dials or hands, and would have shown the time in various time systems, including Italian hours, canonical hours, and time as measured by astronomers at the time. In 1283 a large clock was installed at Dunstable Priory; its location above the rood screen suggests that it was not a water clock.
In 1322 a new clock was installed in Norwich, an expensive replacement for an earlier clock installed in 1273. Near the end of the 14th century, the spring had begun to replace the weight in some clocks. Spring-driven clocks were developed during the 15th century, and this gave the clockmakers many new problems to solve, such as how to compensate for the changing power supplied as the spring unwound. The first record of a minute hand on a clock is 1475, in the Almanus Manuscript of Brother Paul. In 1577 the minute hand was invented by Jost Burgi for Tycho Brahe; he was an astronomer who needed accurate clocks to track stars.


During the 15th and 16th centuries, clockmaking flourished, particularly in the metalworking towns of Nuremberg and Augsburg, and, in France, Blois.
However, this clock could not have been accurate, and the second hand was probably for indicating that the clock was working.The next development in accuracy occurred after 1657 with the invention of the pendulum clock.
By 1656, the pendulum was incorporated into clocks, which lead to better paced and more accurate clocks. Christiaan Huygens' pendulum clock was regulated by a mechanism with a "natural" period of oscillation. Around 1675 Huygens developed the balance wheel and spring assembly, still found in some of today's wrist watches. In 1670, the English clockmaker William Clement created the anchor escapement, an improvement over Huygens' crown escapement. A major stimulus to improving the accuracy and reliability of clocks was the importance of precise time-keeping for navigation. During the 16th and 17th centuries the need for accurate clocks while sailing across the oceans arose.
The balance wheel, hairspring, and mainspring, together with the anchor escapement, or improved escapements, still make up the basics of even todays modern watches. The reward was eventually claimed in 1761 by John Harrison, who dedicated his life to improving the accuracy of his clocks. The excitement over the pendulum clock had attracted the attention of designers resulting in a proliferation of clock forms. In 1721 George Graham improved the pendulum clock's accuracy to 1 second a day by compensating for changes in the pendulum's length due to temperature variations. Over the next century refinements led in 1889 to Siegmund Riefler's clock with a nearly free pendulum, which attained an accuracy of a hundredth of a second a day and became the standard in many astronomical observatories. The development of electronics in the twentieth century led to clocks with no clockwork parts at all.
The 350-year-old mystery of why pendulum clocks hanging from the same wall synchronize over time may finally be solved, scientists say.
The idea for an eternal clock that would continue to keep time even after the universe ceased to exist has intrigued physicists. The minute hand of the famous Doomsday Clock is set to move this Thursday, and for the first time, anyone with Internet access can watch. A next-generation atomic clock that tops previous records for accuracy in clocks based on neutral atoms has been demonstrated by physicists at JILA, a joint institute of the Commerce Department's National Institute of Standards and Technology (NIST) and the University of Colorado at Boulder. The time-keeping device that governs all aspects of our lives, the atomic clock, is celebrating its 50th year.
The first atomic clock, which uses the resonance frequencies of atoms to keep extremely precise time, was born at the UK's National Physical Laboratory.
Over $2 million to make during seven years of hard work, the Corpus clock is the brainchild of A Brief History Of Time author Professor Stephen Hawking. The 150+ pegs rotate seemingly randomly until numbers magically start spelling themselves out, clockwise of course.
The Binary clock uses principles you can see explained with this online clock – and requires a level of familiarity with computers approaching that of a character from The Matrix. You will be relieved to know that all these clocks come with exaustive assembly instructions, and it won’t be long before you have your own fully wooden machine to marvel at. In 1989, French physicist and artist Bernard Gitton designed and built the water clock at the Children's Museum of Indianapolis. One for the water to drip out of and one to catch the flowing water; they do not have to be identical (see Figure 1). You will be given a general design, but part of the engineering challenge in this project is to find two containers that work well together to make the water clock. A flat bottom quickly creates a uniform water level, which is important for your clock to keep time accurately.
The water clock needs only one opening for the water to flow through, and you will make that opening later.
Fill the upper container with water and let it sit for an hour, checking that there are no leaks. Perform a water test on the upper container by filling it with water and making sure it does not leak after an hour.
The flow rate is the number of drops of water per minute that leave the upper container and fall into the lower container.
If the hole lets water out either too fast or too slow, simply block the opening on the inside with a marble-sized amount of plumber's putty. Use the fine-tip marker to draw a line showing the starting water level on the inside of the upper container. When you start your water clock, water should steadily drip from the upper container into the lower container, as shown in this image.
Because cork is buoyant, it floats on the surface of the water and the float stick will rise as water fills the lower container.
Your alarm water clock should provide some kind of noise so that if you are not in the same room as the water clock you can hear when time is up.
An hour glass is basically 2 bubbles of glass with a narrow middle; wood is used to close off the sand.
Water clocks were used in ancient Babylon, Mesopotami, China, Korea, Egypt, Greece, India, Arabia, Muslim and civilizations.
Markings on the inside surfaces measured the passage of "hours" as the water level reached them. Medieval religious institutions required clocks to measure and indicate the passing of time because, for many centuries, daily prayer and work schedules had to be strictly regulated. Existing clock mechanisms that used water power were being adapted to take the driving power from falling weights. Over the next 30 years there are brief mentions of clocks at a number of ecclesiastical institutions in England, Italy, and France. Some of the more basic table clocks have only one time-keeping hand, with the dial between the hour markers being divided into four equal parts making the clocks readable to the nearest 15 minutes. Burgi's accurate clocks helped Tycho Brahe and Johannes Kepler to observe astronomical events with much greater precision than before.The first record of a second hand on a clock is about 1560, on a clock now in the Fremersdorf collection. Huygens' pendulum clock had an error of less than 1 minute a day, the first time such accuracy had been achieved. The position of a ship at sea could be determined with reasonable accuracy if a navigator could refer to a clock that lost or gained less than about 10 seconds per day. Notably, the longcase clock (also known as the grandfather clock) was created to house the pendulum and works.


John Harrison, a carpenter and self-taught clock-maker, refined Graham's temperature compensation techniques and added new methods of reducing friction. It kept time on board a rolling ship to about one-fifth of a second a day, nearly as well as a pendulum clock could do on land, and 10 times better than required.
The electric clock's mainspring is wound either with an electric motor or with an electro-magnet and armature. The balance of such an electric watch is kept in motion electromagnetically by a coil that is energized by an electronic circuit. In 1665, Dutch physicist Christiaan Huygens, inventor of the pendulum clock, was lying in bed with a minor illness and watching two of his clocks hanging on a wall, said Henrique Oliveira, a mathematician at the University of Lisbon and co-author of a new study detailing the findings.
The new clock, based on thousands of strontium atoms trapped in grids of laser light, surpasses the accuracy of the current U.S.
Atomic clocks form the standard for Coordinated Universal Time (UTC), which governs legal time-keeping globally.
The Around About clock similarly requires a little interpretation, with the twist that it revolves once every 24 hours and its single hand stays still.
The Etch a Sketch clock is very much the prototype, but a highly impressive one (follow the link above to Engadget to see it in action) – and the hypnotic Pong clock is newly available to be bought online.
Al-Jazari developed many cutting-edge devices; one of his most famous inventions was the elephant water clock.
An Egyptian sundial for daylight use and an Egyptian water clock for nighttime use found in the tomb of Pharaoh Amenhotep I, both dating to c. These clocks were used to determine hours at night, but may have been used in daylight as well. One of the most elaborate clock towers was built by Su Sung and his associates in 1088 A.D. This was done by various types of time-telling and recording devices, such as water clocks, sundials and marked candles, probably used in combination.
One problem with a spring clock is that the escapement mechanism must always be operated with a constant force. Other clocks were exhibitions of craftsmanship and skill, incorporating astronomical indicators and musical movements.
And in London in 1671 William Clement began building clocks with the new "anchor" or "recoil" escapement, a substantial improvement over the verge because it interferes less with the motion of the pendulum. The English clockmaker William Clement is also credited with developing this form in 1670 or 1671.
Even mechanical clocks have since come to be largely powered by batteries, removing the need for winding. Huygens noticed something odd: No matter how the pendulums on these clocks began, within about a half-hour, they ended up swinging in exactly the opposite direction from each other. The clocks are vital for rafts of technologies, such as global satellite navigation, and TV signal timings. We eye the clock throughout the day to make sure we are on time and not late for some other activity. A water clock is a device in which time is measured by the flow of water into or out of a vessel. This clock was special not only for accurately keeping time, but also for its amazing engineering. The clock in its most common modern form (in use since at least the 14th century) displays the hours, minutes and, sometimes, seconds that pass during a twelve- or twenty-four-hour period.
Time is measured by this clock through the shade of the stones in the center which falls on the stones of the circle. Another version consisted of a metal bowl with a hole in the bottom; when placed in a container of water the bowl would fill and sink in a certain time. This controlled release of power - the escapement - marks the beginning of the true mechanical clock. The out growth of this invention was the walled pendulum clock where the weights and pendulum are completely enclosed in a case. It was also at this time that clock cases began to be made of wood and clock faces to utilize enamel as well as hand-painted ceramics. The Shortt clock almost immediately replaced Riefler's clock as a supreme timekeeper in many observatories. The KnoWhere You And Me clock aims at a different consumer base: timezone-crossed friends or lovers.
Since the water clock depends solely on the flow of water, it can operate at night or on days when the sun does not shine. It's used for short periods of time such as speeches, sermons, watch duty, cooking, and at sea to calculate one's position. The Romans also used a 12-hour clock: the day was divided into 12 equal hours (of, thus, varying length throughout the year) and the night was divided into three watches. Some water clocks rang bells and gongs, others opened doors and windows to show little figures of people, or moved pointers, dials, and astrological models of the universe. The Su Sung clock tower, over 30 feet tall, possessed a bronze power-driven armillary sphere for observations, an automatically rotating celestial globe, and five front panels with doors that permitted the viewing of changing mannikins which rang bells or gongs, and held tablets indicating the hour or other special times of the day. Of course, most people are very familiar with these clocks with the most common being the 'Grandfather Clock'.
But recently, scientists analyzing two pendulum clocks hanging from the same beam found that the clocks could influence each other through small forces exerted on the supporting beam. In this science project, you will follow in the footsteps of early engineers and build a water clock that tracks time for three hours. The Greeks and Romans also came to depend on water clocks, and both cultures made improvements on the basic design.
The need to track night hours lead to the invention of the water clock by 1500 BC, the Egyptians.
The slave pendulum gives the master pendulum the gentle pushes needed to maintain its motion, and also drives the clock's hands.
This clock uses the steady dripping of water from a vessel to drive a mechanical device that tells the time.



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Comments to “Water Clock Blueprints”

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