A pantograph (from Greek παντ- 'all, every', and γραφ- 'to write', from their original use for copying writing) is a mechanical linkage connected in a manner based on parallelograms so that the movement of one pen, in tracing an image, produces identical movements in a second pen. If a line drawing is traced by the first point, an identical, enlarged, or miniaturized copy will be drawn by a pen fixed to the other. Using the same principle, different kinds of pantographs are used for other forms of duplication in areas such as sculpting, minting, engraving, and milling. Because of the shape of the original device, a pantograph also refers to a kind of structure that can compress or extend like an accordion, forming a characteristic rhomboidal pattern. This can be found in extension arms for wall-mounted mirrors, temporary fences, pantographic knives, scissor lifts, and other scissor mechanisms such as the pantograph used on electric locomotives and trams. (Wikipedia).
Short for "digital single-lens reflex," DSLR Cameras are large cameras with interchangeable lenses that can take very high-quality photos. We hope you enjoy! To learn more, check out our written lesson here: https://edu.gcfglobal.org/en/digitalphotography/
From playlist Digital Photography
HUGE PARABOLIC MIRROR SOLAR POWERED SUN COLLECTOR solar energy
http://www.greenpowerscience.com/ I just got this and will be doing a real video soon. This is just to show it off. It is really cool! No audio on this one. Just a quick preview of a video to come.
From playlist PARABOLIC MIRROR CONCAVE SOLAR REFLECTOR
This video is used for Hologram technology, just make the hologram device at home with a very simple way, I'll put a video of how to make the Hologram device. Enjoy!
From playlist OPTICS
Stereolab "Ticker Tape Of The Unconscious" (Montage)
Taken from the album "Dots And Loops".
From playlist the absolute best of stereolab
The Brilliant Engineering behind Pantographs!
Modern, Z-shaped pantographs are marvels of engineering. In this video we will explore all the details of their design and engineering innovations. LinkedIn : https://www.linkedin.com/in/sabin-mathew/ Be our supporter or contributor: https://www.youtube.com/channel/UCqZQJ4600a9wIfMPbYc60O
From playlist Locomotive Engineering
The Fascinating Engineering behind Electric Trains!
It might be surprising to know that in electric trains, the power collected from the overheadlines ends up in the grounding cable of the track after flowing through the wheels. Three phase power conversion, regenerative braking and zig-zag overheadlines - all these make electric train tech
From playlist Locomotive Engineering
Gas Meter: Equipment Autopsy #74
http://thegeekgroup.org/ - After much demand, we take apart a gas meter! Not knowing what we'd find, Chris explores the special mechanisms behind measuring gas flow in this 60s-70s vintage piece. Along the way we play with air pressure, and explore the idea of a pantograph. Video Links:
From playlist Equipment Autopsies
Hamiltonicity of Cayley graphs and Gray codes: open problems by Elena Konastantinova
DATE & TIME 05 November 2016 to 14 November 2016 VENUE Ramanujan Lecture Hall, ICTS Bangalore Computational techniques are of great help in dealing with substantial, otherwise intractable examples, possibly leading to further structural insights and the detection of patterns in many abstra
From playlist Group Theory and Computational Methods
Railway power lines | The Art of keeping them STRAIGHT
Whenever you travel in a train you might have seen these hanging weights near the poles and a strange connection of wires near to them. What exactly are they? Why couldn’t they just use a simple conductive wire arrangement similar to the normal power transmission system? Let’s learn about
From playlist Locomotive Engineering
Pantographs and the Geometry of Complex Functions | Infinite Series
Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/donateinfi When we mathematically abstract a 400 year old drawing tool called the Pantograph, we find that they have an incredible relationship with complex functions. Start your
From playlist An Infinite Playlist
Investigating The Futuristic Vision Of Magnetic Levitation | Power: High-Speed Trains | Spark
Railways deliver the power to move people, freight, armies, and raw materials. They also have the technology to do it fast. In this episode we investigate the high speed trains that link cities, the futuristic visions of magnetic levitation and pods, and tell the story of engineering marve
From playlist The Science Of Trains
From playlist the absolute best of stereolab
Pantograph for drawing cycloid curves
Blue, orange, green and yellow bars create a pantograph. Two red pins and blue one are in line. The blue pin traces a curve of cycloid family (in green) subject to radii of pink and violet cranks, gear transmission ratio (2 for this video). Inventor files of this video: http://www.mediaf
From playlist Mechanisms
Green and blue pulleys have same diameter. COD: straight line AC and BD are parallel. Triangles OAC and OBD are similar. O: immobile OC/OD = OA/OB = AC/BD = k = constant Figures traced by pen D and pen C are similar but upside down each other. Scale factor is k. Adjust OA and AC to get var
From playlist Mechanisms
Pantograph for drawing circles
Blue, orange, green and yellow bars create a pantograph. Two red pins and blue one are in line. The blue pin traces a circle. Its center O lays on O1O2: OO2 = O1O2(FE/AF) Its radius R depends on angular position between pink and violet cranks and their radii. STEP files of this video: h
From playlist Mechanisms
An excellent song which I could not find on Youtube.
From playlist the absolute best of stereolab