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Animated diagrams show how energy is stored and discharged in Edison storage batteries
How Edison batteries function. The are also known as nickel-iron battery or NiFe batteries. An animated diagram shows how nickel iron alkaline storage batteries such as Edison batteries store and generate energy. The diagram shows the battery, generator, switch, motor, and a light bulb. An early nickel-iron Edison battery in wooden box. A later version of the nickel-iron battery invented by Thomas A. Edison in 1909. Pie chart showing the market share of Edison batteries over other portable batteries in 1926. Photograph of German-born American mathematician and electrical engineer Dr. Charles Proteus Steinmetz, "The Wizard of Schenectady". Slate bearing a commentary on from Dr. Steinmetz claiming "complete reversibility" of the Edison battery reaction. Diagram shows the reversible cycle of a portable battery. Animation in the diagram shows how energy is stored in the battery- the oxygen contained in the negative plate is forced to the positive plate by the charging current. The animation demonstrates the discharge of the battery. Plates from used Edison batteries show little decay after years of use.
Jim Henson and other puppeteers prepare and rehearse with ‘The Muppets’ characters
A feature on Jim Henson, creator of 'The Muppets'. The Muppets characters such as the Cookie Monster, Grover, and Herry Monster on display. Big Bird smiling. Oscar the Grouch hiding behind a tree. Cookie Monster holding an A-shaped cookie. The Muppets creator Jim Henson rehearses a Sesame Street sketch as Ernie. Another puppeteer playing as Simon Soundman rehearse alongside Jim Henson in front of a mirror. Jim Henson talks to a colleague beside a woman inside his Manhattan office. “It seems to me that it might be better to use the little guy Harvey Muskrat (sic) for that part” Jim Henson told his colleague. Puppet designers working at the Jim Henson Company studio. A female puppet designer adjusts the dress of Ma Otter from ‘Emmet Otter's Jug-Band Christmas’. Another female designer cuts fabric from her desk. A female puppeteer moves the head of a Muppet puppet. Jim Henson performs as Emmet Otter from the Muppets movie ‘Emmet Otter's Jug-Band Christmas’ (1977). Emmet Otter tells a joke to a woman, making her laugh. A puppet designer works to animate Ma Otter. Animatronics control Ma Otter as she uses a sewing machine. Emmet Otter rowing a boat. A puppet designer operates animatronics to make Emmet Otter move. Emmet Otter’s head moving automatically. The Howard Snake from ‘Emmet Otter's Jug-Band Christmas’ moving his mouth. Jim Henson, producers, and puppeteers attend a script read-through. Jim Henson holding Fred Lizard. Puppeteers rehearse as the ‘Riverbottom Nightmare Band’ Muppets. Jim Henson performs as Howard Snake.
Ghanaian student studies theater arts at the University of North Carolina
A Ghanaian student walking to her university in the United States. Sign reads “Chapel Hill site of the University of North Carolina which first opened its doors in January 1795”. The University of North Carolina Chapel Hill campus grounds (Bell Tower, Chapel Hill, NC 27514, United States). The Ghanaian student joins with a group of white female American students on their way to class. A book (Theatres and Auditoriums) on table. A professor conducts his lecture. Cigarette smoke in classroom as student watches lecture. The African student opens and writes on her notebook. A Japanese student listens to the professor. The professor points to a diagram on the board using a ruler. American students walking on campus. Ghanaian student walks to the university scene and costume shop. Sign reads “The Playmakers Scene Shop and Costume Shop”. The Ghanaian student looks at costume sketches with other costume design students. A professor assists the students during their practicum. The professor and a student insert pins on a mannequin. Ghanaian student talks to a girl wearing glasses. The professor helps the Ghanaian student with sewing costumes. Sign reads “Department of Dramatic Art”. A woman enters the door of the department. Theater Arts students in costume rehearse for a play. Students working with sounds during a television production course. Ghanaian student with headphones during her practicum. An actor dancing on stage. Ghanaian student directs a live presentation of a school play while her professor acts as a cameraman using large video camera on tripod. “On The Air” sign turns on. Theater Arts students acting in a Shakespearian play. Ghanaian student acts with a female professor in a modern play in front of other students.
German soldiers loading Howitzers into a Go-242 transport glider in Germany (WW2)
German soldiers loading Howitzers into a parked Gotha Go-242 transport glider on ground covered with snow. The rear of the fuselage is raised. Soldiers pushing in a World War II 105mm type German Howitzer. Two soldiers inside aircraft use hand pulley to pull in the Howitzer. The soldiers load more Howitzers into the aircraft. Interior shots of Go-242 glider as soldier fastens the just close rear part of fuselage. Soldiers continue to fasten and secure the Howitzer to aircraft deck using cloth straps. Go-242 towed by a small truck from right to left. The aircraft goes past ground camera and then right to left again over snow-cleared runway.
A Junkers Ju-52 transport aircraft towing a Go-242 during take-off and in flight (WW2)
German Junkers Ju-52 transport aircraft towing a Gotha Go-242 transport glider over a snow-cleared runway in Germany during World War II. Both take off as seen from camera placed in rear top turret of the Ju-52 towing the Go-242. Aerial, in-flight shots of the Go-242 glider taken from rear of the towing Ju-52. Interior shots of rear of the two pilots inside Go-242 glider cockpit. A Go-424 pilot demonstrates use or control wheel and movability of the pivoted instrument panel which can be swung from one side to other with pilot's foot. Go-242 releases toe line and continues to glide on its own power as seen from the rear camera of the Ju-52. View of gliding Go-242 from left to right. After a while three pair of spring skids are let out from-bottom of fuselage. Go-242 pilots as they pilot the glider. Two pilots at the nose section of the Go-242 glider. The nose section is half glass covered through which can be seen the two pilots. On top of nose is an opening through which a soldier climbs and shows a heavy caliber machine gun; another opening is on the right bottom side of nose where another opening is made for machine gun. One soldier demonstrating use of machine gun and a small rectangular opening just below pilot's seat where another soldier holds a light machine gun at the front section of Go-242 glider.
German scientists and Luftwaffe aircraft at a weather station in Germany
A German Luftwaffe military aircraft parked in front of a weather station in Germany in the late 1930s. A German man releases weather balloon at the weather station. The weather balloon flies away. A German Aeronautical scientist using telescopes to watch weather balloon’s flight. Scientists setting up equipment in garden. A scientist uses a camera to record a propeller running on high speed. A materials scientist pulls out a cross from the ground.
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