Xiquetes flotant a l'espai

Dare to take on the new challenge proposed by Chantal Ferrer for «Free fall», related to gravity and our perception of weight.
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Pila de Volta

History of the relationship between electric currents and magnetic phenomena.
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In resonance, the force transmitted to the object may be relatively small, but when it is transmitted with the right frequency, it oscillates with great amplitude.

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If we hang a magnet by a thread, it always aligns itself in the same direction, even if there is no other magnet nearby. This is a compass and responds to the Earth's magnetism.

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In the 17th century, it was difficult to achieve and maintain a partial vacuum. In the 21st century, the challenge is to achieve an ultra-vacuum in the laboratory such as we could never have dreamed of.
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For there to be sound, there must be a vibrating source, a transmitting medium that propagates the vibration at a certain speed, and a receiver that is set into vibration when the wave arrives.
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There is no way to force a pendulum to oscillate at a different rhythm, determined exclusively by its length
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illustr palletes estiu

Using simple materials like plastic bottles, straws, modelling clay, and syringes you can witness many interesting phenomena relating to air and water pressure.
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Illustration syracuse

The historian of science Alexander Koyrè summarised the scientific work of the sixteenth century as a gradual understanding of the works of Archimedes.
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illustration large hugo salais sling

Probably of Paleolithic origin and present since the first civilisations, the sling is ancient and ubiquitous not only as a weapon, but also as the paradigm of circular movement.
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