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Jean-Bernard Hayet

@jbhayet.mathstodon.xyz.ap.brid.gy

54 followers 46 following 31 posts

[bridged from mathstodon.xyz/@jbhayet on the fediverse by fed.brid.gy ]

Posts Replies Media

Jean-Bernard Hayet @jbhayet.mathstodon.xyz.ap.brid.gy · 07/06/2026

A view over the city of Guanajuato, Mexico. Very cloudy sky, the city is located at the bottom of a valley downhill. On both sides of the image, large blocks of rocks suggest that the photo is taken between two hills.

Jean-Bernard Hayet @jbhayet.mathstodon.xyz.ap.brid.gy · 03/05/2026

Hacienda San Matias in Guanajuato. A patio with structures that used to be mining processing plants. A couple of modern sculptures by Sergio Hernández on the right and a cloudless sky.

Jean-Bernard Hayet @jbhayet.mathstodon.xyz.ap.brid.gy · 13/04/2026

Hilly and dry landscape of Guanajuato, Mexico with the reddish building of Cimat on top of a hill.

Jean-Bernard Hayet @jbhayet.mathstodon.xyz.ap.brid.gy · 25/01/2026

Panoramic view over Sierra de Santa Rosa with its oak forest. Sparsely cloudy sky. The village of Santa Rosa appears at the bottom right.

Jean-Bernard Hayet @jbhayet.mathstodon.xyz.ap.brid.gy · 07/11/2025

To be or not to be!

A grasshopper seems to be holding in its legs a ball-shaped fruit

Jean-Bernard Hayet @jbhayet.mathstodon.xyz.ap.brid.gy · 02/11/2025

Foggy day over Sierra de Santa Rosa. In the foreground, some nopales on the left and a dead trunk; in the background, the woody hills under the morning fog.

Jean-Bernard Hayet @jbhayet.mathstodon.xyz.ap.brid.gy · 28/09/2025

A photo with a small cactus and a capybara-shaped locust on the side of it.

Jean-Bernard Hayet @jbhayet.mathstodon.xyz.ap.brid.gy · 07/09/2025

Group of horses on the hills above Guanajuato, México. Cloudy sky and green, hilly landscape.

Jean-Bernard Hayet @jbhayet.mathstodon.xyz.ap.brid.gy · 27/07/2025

#silentsunday Sierra de Santa Rosa, con la silueta de la Giganta en el fondo.

A landscape with oak forest, hills and valleys, under a low, grey sky. At the background, some sun rays over the Giganta mountain.

Jean-Bernard Hayet @jbhayet.mathstodon.xyz.ap.brid.gy · 22/07/2025

A round-shaped biznaga cactus surrounded by a thick layer of moss

Jean-Bernard Hayet @jbhayet.mathstodon.xyz.ap.brid.gy · 29/06/2025

#silentsunday some anamorphic street art in the streets of Guanajuato from colleagues of CIMAT

A street of Guanajuato in central Mexico. Colorful houses with a cobblestone street. A chair is drawn on the street with yellow tape with anamorphic effect

Jean-Bernard Hayet @jbhayet.mathstodon.xyz.ap.brid.gy · 01/06/2025

Downtown Guanajuato, a reddish bell tower with a large white cloud in the background.

Jean-Bernard Hayet @jbhayet.mathstodon.xyz.ap.brid.gy · 04/05/2025

Some narrow little street in Guanajuato, México. On the left, a red building with some of the painting gone

Jean-Bernard Hayet @jbhayet.mathstodon.xyz.ap.brid.gy · 18/04/2025

A window painted on an orange wall in a laundry room. The window is inspired from a JJ Sempé cartoon, with Paris roofs and three persons and a dog flying over Paris.

Jean-Bernard Hayet @jbhayet.mathstodon.xyz.ap.brid.gy · 29/03/2025

A transvolcanic geay, in Sierra de Santa Rosa, Guanajuato. The bird has nice electric blue (?) feathers and is standing on a branch. Locally they are known as "chuin".

Jean-Bernard Hayet @jbhayet.mathstodon.xyz.ap.brid.gy · 03/02/2025

View over the Volcán de Fuego volcano, in Jalisco, México. The massive shape of the volcano occupies the left side of the image; on the right side and on the foreground, formation of rocks from the Nevado de Colima.

Jean-Bernard Hayet @jbhayet.mathstodon.xyz.ap.brid.gy · 05/01/2025

Inside a cafe of a colonial Mexican city. An empty chair and table with flowers and a bottle of water. A window is widely open and one can see the dome and tower of a church and colonial buildings.

Jean-Bernard Hayet @jbhayet.mathstodon.xyz.ap.brid.gy · 29/12/2024

Six street dogs sleeping on a sidewalk of a provincial Mexican town.

Jean-Bernard Hayet @jbhayet.mathstodon.xyz.ap.brid.gy · 29/12/2024

Mexican landscape. On the foreground, dry grass and a few trees and cactii on a slope. On the background, under a blue sky, the Puebla-Tlaxcala valley with the massive shapes of the volcanoes Popocatépetl (active with smoke emanating from it) and Icczacihuatl (aka the sleeping lady)

Jean-Bernard Hayet @jbhayet.mathstodon.xyz.ap.brid.gy · 08/12/2024

A Mexican landscape with cactuses and bushes in the foreground and a reservoir farther in the background. The sky is covered by little clouds.

Jean-Bernard Hayet @jbhayet.mathstodon.xyz.ap.brid.gy · 03/12/2024

#ThickTrunkTuesday

A zone of mezquites in central mexico

Jean-Bernard Hayet @jbhayet.mathstodon.xyz.ap.brid.gy · 01/12/2024

We repeated the camera obscura experiment at CIMAT for open day. Lot of fun!

The view through a pinhole for a camera obscura experiment: a church and the hills around.

The view inside the camera obscura: same church upside down projected over a screen

The camera obscura (one of CIMAT's offices) with the pinhole on a window and a group of kids watching the projected image

Jean-Bernard Hayet @jbhayet.mathstodon.xyz.ap.brid.gy · 24/11/2024

A large cactus (órgano cimarrón?) in the hills around Guanajuato Capital.

Jean-Bernard Hayet @jbhayet.mathstodon.xyz.ap.brid.gy · 24/11/2024

A young cactus (biznaga?) in the foreground. In the background, dry weeds on the slope of a hill.

Jean-Bernard Hayet @jbhayet.mathstodon.xyz.ap.brid.gy · 17/11/2024

A Mexican landscape of mountains covered with trees, with a reservoir at the bottom.

Jean-Bernard Hayet @jbhayet.mathstodon.xyz.ap.brid.gy · 13/11/2024

Morning sun over the city of Guanajuato, Mexico. A pirul tree and cactii on the foreground. The city and surrounding hills on the background.