Pas García

Fighting gender bias at the speed of light

Full Professor of Physics Pas García takes a gendered approach to her field, which involves the diffraction and polarisation of light. She points out that women in physics represent only around 20–22% of researchers.

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Why can we not see colours at night?

Human eyes cannot perceive colours at night because cones, responsible for colour perception, are only activated under intense light conditions.

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Fluorescence

The number of species catalogued as fluorescent increases each day, and UV lights can help us to find some that are only active during the night, generating a wide range of creative resources to photograph them.

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Decoding smells

Using an external flash placed above the snake, accompanied by a high shutter speed, allowed me to freeze one of those chemosensory licks that the snake used to try to decipher its surroundings.

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Why do wet materials become darker?

When a material gets wet, we see it with a darker colour. Professor Inmaculada Pascual Villalobos explains why.

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mar blava

Why is the sea blue?

When a large quantity of water is observed, as happens in the sea, we notice a blue color that can vary depending on the mass of water we are observing. Do you know why?

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What is the function of the white of the eye?

The sclera, known for its color as «the white part of the eye», is an opaque, resistant, and fibrous membrane that covers part of the eyeball, giving it shape and protecting its interior.

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Why do mirages occur?

We call a mirage seeing objects where they are not. It is an optical illusion that can be seen on very hot days and in places like deserts. Inmaculada Pascual Villalobos explains this and tells us about the «Fata Morgana» effect.

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The extragalactic gamma-ray sky

The gamma-ray radiation represents the most energetic «light» of the electromagnetic spectrum.

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Life from light, light for life

Light can be considered from many points of view. Light is essential for the development of life on Earth, has determined animal and plant evolution, and has also a role in many aspects of culture and art.

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