Turntable Very Near
September 30th, 2008
Turntable Very Near
Rotation About a Vertical Axis?
How's this sound?
A beetle sits near the rim of a turntable that is at rest, but is free to rotate about a vertical axis. What happens if the beetle begins to walk around the perimeter of the turntable? Does the beetle move relative to the ground? Consider the limits of a very massive turntable and a very light turntable.
Yes, the beetle moves relative to the ground. Because to every action, there is an equal and opposite reaction (Newton’s Third Law), the table would try to turn in the opposite direction. If it is a very light turntable, we would be able to see some motion, but not for a heavy one.
If there's no friction and we're considering of only a system of a turn table and a bug walking along the edge of disk, then you just have to conserve angular momentum of the system. A light bug on a heavy turntable would see the bug move a lot relative to the ground and the turntable turn very slowly in the opposite direction. A heavy bug on a very light turntable would see the bug move very little but the turntable turn a lot. The sum of angular momentum of the turn table and the bug has to add up to zero.
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Master Turntable Attachment, 6/pk $193.91 Features of the Master Turntable Attachment: Ideal for shared information situations or for use near telephone and computers. * Customize your catalog rack for convenient viewing from any side. * Allows rack to swivel a complete 360°. * Fits all 6", 12" and 18" capacity catalog racks. * Heavy-gauge steel construction. * Available in black or gray. |
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Technics SL-1210MK2 Turntable Black 886830022401 $449.5 If you're a DJ, the Technics SL-1210MK2 Turntable is the one to own. A quartz synthesizer direct-drive turntable featuring total quartz-locked continuous-pitch adjustment up to ±8%. 0.01% wow and flutter, -78dB rumble. Precision-molded aluminum die-cast cabinet finished in black. Heavy rubber base absorbs vibrations. Very high torque for quick starts, highly sensitive low-mass tone arm with gimbal suspension. NOTE: Stylus sold separately. |
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Turntable Matinee $10.49 Turntable Matinee |
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Turntable Technology $9.49 Turntable Technology |
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TeenNick Turntable Computer Desk $525 TeenNick Turntable Computer Desk. Teens don't consider themselves kids anymore, which is why Lea designed the TeenNick collection to offer more sophisticated and contemporary gathering places. Hardwoods and hand selected Mango veneers with a Chocolate finish combine with white drawer fronts and accents of orange create furniture that can easily go from their bedroom at home to their dorm room or apartment. Electronics are a big part of a teen's world, so it's a big part of the TeenNick furniture. There are plenty of places and spaces for the must-have technologies of the day, including laptops, cell phones, game consoles, TV's and MP3 players. Add in a nesting chaise, one of the futons or a rocker chair, and their room will be THE place for friends to hang out. With TeenNick, there are many creative options on where to sleep: a mixed media study loft bed; a very contemporary panel bed with nightstands; unique storage headboards where the mattress fits inside the headboard; and a day bed with optional "study wall" and entertainment/media headboard - creating a "room within a room". Rooms stay neater with the ample storage built into each piece. And we've built mobility into many of the pieces, including the wheeled entertainment stand and desktop that can swivel 360. |
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Stanton 680.V3 DJ Turntable Cartridge $199 A classic club cartridge with superior sound quality. The legendary 680.V3 cartridge is regarded as one of the best cartridges on the planet for mixing, club use, and scratching. The wide-band frequency response will give you high energy record playback and that extra punch you need to quake the dance floor whether playing dance or hip-hop. The 680.V3's suspension is designed to be very stable for those less than perfect club setups. The suspension is so robust that the 680.V3 functions just as good as a scratch needle as it does as a club needle. The MP4 package includes 2 matched cartridges, mounted on tone-arm like devices, inside a small and practical road-worthy clear flight-case. Stanton 630.V3 DJ Turntable Cartridge Features Best cartridge for scratching Extremely good low end response for club environments Very forgiving suspension design New industrial design Perfect for: Hip hop/Scratch DJs Club DJs |
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Very Near to You (Hardcover) $41.79 The book is a new interpretation of the weekly torah reading. It is written from a world view deeply committed to Judaism, which places the responsibility of interpretation and identity on each one of us. The Torah is not in heaven but in the heart and mouth of you and me, to study it and to live by it. Through this book the author tries to involve the reader in the language of the five books of Moses that has been present in our lives for thousands of years. It`s a language which is human, universal, moral, historical and national. "My interpretation is one of many and I try to invite the reader or student to argue or to agree, to add or to subtract from my interpretation, or even better to develop their own interpretation and spread it around." Avraham Burg-Author |
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Train Turntable $24.99 Train Turntable - Photographic Print |
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Railway Turntable $24.99 Railway Turntable - Photographic Print |
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Turntable, Retro $24.99 Turntable, Retro - Premium Poster |
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Turntable Line $24.99 Turntable Line - Photographic Print |
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Merryweather Turntable $39.99 Merryweather Turntable - Giclee Print |
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Professional Manual Turntable $73.94 PYLE TURNTABLE |
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Ortofon Pro Concorde Turntable Cartridge Twin Pack $203.99 The Ortofon Pro Concorde is a general purpose turntable cartridge for scratch and back cueing, mounted with a spherical diamond. It achieves an output of 5.0 mV.Several Ortofon technologies make it possible to realize high sound quality and low record wear at the high tracking forces that are necessary in disco environments. DJs all over the world claim very high demands to their professional DJ equipment, among which the cartridges plays their decisive part by realizing that scratching, back-cueing, and live artistic performance are a big part of the show. Reliability and robustness is vital, when these replacement cartridges night after night will have to withstand these demands in environments with extreme sound pressure and vibration.Scratching and back-cueing impose heavy mechanical stress on the cantilever and its rubber bearing. Therefore, the Ortofon Pro Concorde cartridges are equipped with cantilevers made from aluminum tube with increased wall thickness. Special attention has also been paid to the attachment of the bearing and the design of the bearing itself. This means that rough treatment will neither damage the turntable cartridge nor degrade its stability.For easier cueing, the nose of all the Ortofon replacement cartridges have an extra large cut-out which makes the stylus freely visible from above, and further, the tip of the cantilever is fluorescent.2 Pro Concorde turntable cartridges |
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Ortofon Scratch Twin Pack Turntable Cartridge $234.99 The Ortofon Scratch was designed together with DJ's for scratch and back cueing. The rubber suspension is especially developed for scratch and back cueing. This turntable cartridge uses a spherical diamond and achieves a high output (7.0 mV).Several Ortofon technologies make it possible to realize high sound quality and low record wear at the high tracking forces that are necessary in disco environments. DJ's all over the world claim very high demands to their DJ professional equipment, among which the cartridges plays their decisive part by realizing that scratching, back-cueing, and live artistic performance are a big part of the show. Reliability and robustness is vital, when these replacement cartridges night after night will have to withstand these demands in environments with extreme sound pressure and vibration.Scratching and back-cueing impose heavy mechanical stress on the cantilever and its rubber bearing. Therefore, the Ortofon cartridges are equipped with cantilevers made from aluminum tube with increased wall thickness. Special attention has also been paid to the attachment of the bearing and the design of the bearing itself. This means that rough treatment will neither damage the Ortofon cartridge nor degrade its stability.For easier cueing, the nose of all the Ortofon cartridges have an extra large cutout which makes the stylus freely visible from above, and further, the tip of the cantilever is fluorescent.2 Ortofon Scratch turntable cartridges |
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Ride the turntable
where can i go in the uk that will put my records on to cd for me?
i don't want to pay over £50 for a turntable just to put 4 12inch records on to a cd. they are rare 12inches and cannot get them on cd as they very old. is there a shop or something? i am near heathrow airport are.
thank you
Hi
have a look here,hit the "contact" button and send them an email about your quest
http://www.recordfair.co.uk/
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