Another #Electromagnetism lecture, another live experiment: this one is creating the "tomato battery", i.e. using cherry tomatoes to create zinc-copper galvanic cells and power a small electric watch (which needs about 1.5V to work).
the students realise that a single cell is not enough, and a series of two is needed to get enough voltage.

That's the vegan version of the original experiments by Galvani, in which dead frogs were involved..

#physics #science

Here is the "experiment" of today in the #Electromagnetism class: a tiny replica of the Leiden jar which is a far ancestor of the battery, consisting of a distribution of chargers trapped in in a glass container, which acts as a capacitor when the inner and outer conducting layers are reconnected again.

I used a voltmeter to detect the tiny residual voltage (0.4mV) produced across the bottle after the charging process.

#science #physics

“Major Darget, placing his fingers together, projected his will on a sensitive plate.” (1913) by Hippolyte Baraduc, from The Human Soul.

Source: Boston Public Library / Internet Archive

https://pdimagearchive.org/images/65b2de8e-f9ac-4b7e-8ae5-169f4cba3111

#abstract #electricity #spirituality #soul #spirits #occultism #electromagnetism #auras #art #publicdomain

Mind blowing 💥 experiment to show the principle of an electroscope, with high tech material.
Home recorded experiment, under safe conditions, of what I am also going to present in the class.

#electromagnetism #physics #science