Rheochord RheochordAfter the invention of first measurement devices, like, say galvanoscopes, there arose a need to create control samples of electric values - Ohms, Volts, Amperes. This required galvanic cells with the voltage of exactly 1 Volt or a resistor with the resistance of exactly 1 Ohm or 10 Ohms. BS Yakobi's rheochord was one of the first devices of the kind. It was nothing more but a simple drum with size wire wound onto it. By rotating the drum one could include any part of resistance into the circuit, with such resistance to be calculated according to the scale. After performing measurements for a couple of times Yakobi decided to introduce some minor improvements to his rheochord. He noticed that the resistance of the contact between the rolling wheel and the wire is not constant and decided to supply his rheochord with mercury contacts. Later on the scientists constructed a mercury rheochord, where resistance is supplied by mercury. In 1848 Yakobi created the first standard resistance control sample that was well received by a number of laboratories in Russia and Europe. The sample was designed in such a way that it can equally compare to any of today's samples. Yakobi's resistance unit was made as a coil of 25 foot long copper wire with the weight of 22.5 g and diameter of 0.67 mm. The coil was inserted into a special box filled with aquaseal. Control samples of this unit were manufactured on a large scale.So, Yakobi's rheochord can truly be considered the first ...
A Simple Method of Modulating Inexpensive Laser Light Sources This production is a sample for my first year BDC 111 Media Technical Theory class at Ryerson University. * * * * * Works Cited Or Used In This Production Bergeron, Brian P. "A Laser Communications Primer - Part 1." QST Sept. 1990: 19-22. Print. Bergeron, Brian P. "A Laser Communications Primer - Part 2." QST Oct. 1990: 22-26. Print. Eddie Bullen. "Second Thought." Rec. 1998. ADD Music Volume 3: Pop-Jazz. Norm Sabourin, 1998. CD. "HowStuffWorks "How Lasers Work"" Howstuffworks "Science" Web. 17 Sept. 2009. Midwest Laser Products, LLC. Web. 17 Sept. 2009. www.midwest-. ScopeStuff. Web. 17 Sept. 2009. http "YouTube - How a Ruby Laser Works." YouTube - Broadcast Yourself. Web. 17 Sept. 2009. "YouTube - Make a Simple Laser Communicator." YouTube - Broadcast Yourself. Web. 17 Sept. 2009.
Bauhaus - Scopes Scopes by Bauhaus. Taken from album In the Flat Field.
Joe 90 Theme Joe 90 is a 1968 television series concerning the adventures of a nine-year-old boy, Joe McClaine, set in the years 2012-13. Devised by Gerry and Sylvia Anderson, a single season of thirty 25-minute episodes was completed, and it was the last show to be made exclusively using a form of puppetry called "Supermarionation". It was created for Lew Grade's ITC Entertainment by Century 21 Productions (by this time also under Grade's ownership), and was first broadcast on the British ITV network by Associated TeleVision. Joe's adoptive father and computer expert, Professor Ian McClaine, is the inventor of the BIG RAT, (Brain Impulse Galvanoscope Record And Transfer), a device that allows knowledge and experience to be copied from the minds of top experts in their fields to another person. Mac's friend, Sam Loover, a secret agent for the World Intelligence Network (WIN), persuades Mac to let Joe use the machine to work for WIN. After the requisite skill is transferred, and provided Joe is wearing special spectacles containing hidden electrodes, he is able to fly jet fighters, perform surgery, and so on, while appearing innocent in the eyes of his enemies. There is some inconsistency as to why Joe is called "90." According to the promotional information, when Joe joined World Intelligence Network (WIN) there were 89 agents based in London, making him the 90th. However, in the episode "Project 90" the BIG RAT is designated project 90 and Joe is named after this.
Bauhaus - Scopes Artist: Bauhaus Song: Scopes Album: In the Flat Field (Track 14) Year: 1980 Don't already own this? Please support Bauhaus by purchasing this song via the link to the right. :) "Copyright Disclaimer Under Section 107 of the Copyright Act 1976, allowance is made for "fair use" for purposes such as criticism, comment, news reporting, teaching, scholarship, and research. Fair use is a use permitted by copyright statute that might otherwise be infringing. Non-profit, educational or personal use tips the balance in favor of fair use.""Copyright Disclaimer Under Section 107 of the Copyright Act 1976, allowance is made for "fair use" for purposes such as criticism, comment, news reporting, teaching, scholarship, and research. Fair use is a use permitted by copyright statute that might otherwise be infringing. Non-profit, educational or personal use tips the balance in favor of fair use."
Videman's galvanometer Videman's galvanometerVideman's galvanometer was one of the variants of a measuring voltmeter device with plug-in coils. It was designed in 1874 by physicist Gustav Videman. It was an enhanced tangential galvanoscope initially designed by sign of the device includes a massive insulation base with plug-in inductance coils placed on the two sides of the support. Thus it is possible to change device sensitivity by connecting coils with a different number of windings. Galvanomer sensitivity is smoothly regulated with the help of regulating screws which move coils closer to the rotary magnet or farther from it.The magnet is placed in a copper sphere which compensates for pointer vibration during the measuring process. The magnet axis is connected to a light mirror by a quartz fiber. The mirror increases measuring accuracy of the device. The readings are taken along the external scale where light is reflected by the movable mirror.If combined with an optical tube such galvanometer can be considered a high-precision instrument which is actually still used in practice during lab measurements.
Scopes - Bauhaus Scopes by Bauhaus
Bauhaus - Scopes (stylish video) Scopes! For scope's sake. A video made just for lulz.
Mehano 153 Experiments Enter the world of electricity, magnetism and electromagnetism and discover its secrets. Includes 153 experiments and theoretic explanations. Contains 43 different components and clear instructions. Make: electroscope, ship's compass, galvanoscope, electric key, electric heater, potentiometer,...
How to Pronounce Galvanoscope Learn how to say Galvanoscope correctly with EmmaSaying's "how do you pronounce" free tutorials.