Who is Who
Here you can see who are behind the JOTA-JOTI Service Circuit.
The photo shows all members by name. Then I would like to mention which posts belong to the members:
Light Mill Experiments
In all these experiments make use of the contacts between the blades of the Light Mill. It's easy when you attach a piece of flexible electrical wire here. Stick a piece of tape over the light sensor.
Color the patches starts and finish with a soft black pencil (preferably 6B). Slide the metal surfaces
paperclip on the surfaces, connect the wires to the paper clips. Draw a path through the islands and bridges. If the path is well marked, without interruptions, the mill will run faster.
Lost your wire???
In a pile of wire ends it is sometimes difficult to find the acompanied ends. Try it with the LightMill!
Pak both the end of a wire of the Light Mill bite. Join hands, watching a good look at what happened!
Which materials conduct electricity? Try it with the Light Mill!
Connect different resistances between the wires. What can you say about the speed of the mill and the value of the resistor?