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The wind, the sand and the water: a new explanation for the phenomenon of sand dunes on Earth and Mars

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Gallons = small waves. A new international study led by Ben-Gurion University has challenged the prevailing theory that different physical conditions allow the development of galleons that do not exist on Earth
Fairy circles in Namibia in the rainy season. Photo: Dr. Stefan Getzin

The mystery of the fairy circles

Integrating coping mechanisms of ecosystems makes it possible to deal with drought conditions
Fairy circles in the Namibrand Reserve in Namibia in the rainy season. The average diameter of the circles is about six meters. Photo: Dr. Stefan Getzin

The fairy circles - how the plants' coping with the dryness led to this phenomenon

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Researchers from Ben Gurion University offer an innovative explanation for this unique behavior of the fairy circles phenomenon: a combination of phenotypic adaptation at the level of the individual plant, by deepening the roots of the plants into more moist soil layers,
In the figure: networks with a homogeneous structure (A) differ from heterogeneous networks (B) in their ability to adapt to changes through improvisation. In networks of the first type (homogeneous), each vertex affects a limited number of other vertices. As a result, chaotic dynamics are created and the search process (exploration) does not converge to a stable state. In the heterogeneous networks, on the other hand, some of the vertices (marked as large circles) affect large parts of the network and create dynamics leading to a steady state. Courtesy of the Technion.

The Improvising Cell: Researchers present a new model of biological adaptation to unexpected challenges

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sense of smell. Photo: shutterstock

Humans' sense of smell creates a kind of "personal fingerprint"

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Adjusters of the movement velocities of water drops in a two-dimensional system. Red marking represents droplet pairs with a positive correlation, and blue marking represents droplet pairs with a negative correlation

order in disorder

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Right: Dr. Elad Schneidman and Jordan Cohen. Learning patterns

Where is the border?

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Prediction of gaze direction: the results of the algorithm (in red), compared to the results of two subjects (in green). The face photos (from top to bottom) are of Prof. Shimon Ullman, Daniel Harari, and Nimrod Dorfman

The Digital Baby Project

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Prof. Uri Alon and Yael Ben-Ari. Wonderful coordination. Photo: Weizmann Institute

The liberation movement

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The giant spirits on earth

the whirlwind

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