Travel Summer 2023. Voyage Été 2023

L’été 2023 est à nos portes, et les voyageurs du monde entier se préparent à explorer les plus belles destinations du globe. Que vous soyez un aventurier dans l’âme, un amateur de plage ou un explorateur culturel, il y a de nombreuses idées de voyage passionnantes à découvrir cet été. Voici quelques-unes des destinations les plus populaires pour l’été 2023.

  1. Île de Santorin, Grèce Santorin est une île magnifique située dans la mer Égée, en Grèce. Avec ses maisons blanches accrochées à la falaise, ses eaux cristallines et ses couchers de soleil à couper le souffle, Santorin est l’endroit parfait pour se détendre et se ressourcer. Les plages de sable noir et rouge de l’île sont également uniques en leur genre. Les visiteurs peuvent également explorer les ruines antiques et les villages traditionnels de l’île.

Santorini, Greece. Picturesq view of traditional cycladic Santorini houses on small street with flowers in foreground. Location: Oia village, Santorini, Greece. Vacations background.
  1. Bali, Indonésie Bali est une destination de vacances populaire pour les voyageurs du monde entier, avec ses plages de sable blanc, ses temples anciens et ses paysages verdoyants. Les visiteurs peuvent explorer la culture balinaise unique, y compris les danses traditionnelles et les festivals, ainsi que les nombreux sites touristiques de l’île. Bali est également un endroit idéal pour se détendre et profiter de la beauté naturelle de l’île

  1. Îles Fidji Les îles Fidji sont un paradis tropical situé dans l’océan Pacifique Sud. Les visiteurs peuvent profiter de plages de sable blanc immaculées, de lagons cristallins et de forêts tropicales luxuriantes. Les îles sont également connues pour leur culture et leur histoire uniques, ainsi que pour leur cuisine délicieuse. Les visiteurs peuvent explorer les villages traditionnels fidjiens et participer à des activités culturelles.

  1. Île Maurice L’île Maurice est une île située dans l’océan Indien, connue pour ses plages de sable blanc, ses eaux cristallines et sa vie marine abondante. Les visiteurs peuvent explorer les nombreux sites touristiques de l’île, y compris les jardins botaniques de Pamplemousses et le parc national des gorges de la Rivière Noire. L’île est également connue pour sa cuisine délicieuse et ses nombreux restaurants de fruits de mer.

  1. Costa Rica Le Costa Rica est une destination de vacances idéale pour les amateurs de nature et d’aventure. Les visiteurs peuvent explorer les nombreux parcs nationaux de l’île, y compris le parc national de Tortuguero et le parc national de Corcovado, ainsi que les volcans actifs tels que le volcan Arenal. Le Costa Rica est également connu pour sa faune abondante

    Photos : Source Wikipedia / Google.

    L’ennui du bonheur contre la souffrance du manque


    Une vidéo géniale exposant d’une manière originale ce qu’est le bonheur ou du moins ce qu’est l’ennui. video sur facebook à voir


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    Racetrack Playa is home to an enduring Death Valley mystery. Littered across the surface of this dry lake, also called a “playa,” are hundreds of rocks — some weighing as much as 320 kilograms (700 pounds) — that seem to have been dragged across the ground, leaving synchronized trails that can stretch for hundreds of meters.Death_Valley

    What powerful force could be moving them? Researchers have investigated this question since the 1940s, but no one has seen the process in action — until now.

    In a paper published in the journal PLOS ONE on Aug. 27, a team led by Scripps Institution of Oceanography, UC San Diego, paleobiologist Richard Norris reports on first-hand observations of the phenomenon.

    Because the stones can sit for a decade or more without moving, the researchers did not originally expect to see motion in person. Instead, they decided to monitor the rocks remotely by installing a high-resolution weather station capable of measuring gusts to one-second intervals and fitting 15 rocks with custom-built, motion-activated GPS units. (The National Park Service would not let them use native rocks, so they brought in similar rocks from an outside source.) The experiment was set up in winter 2011 with permission of the Park Service. Then — in what Ralph Lorenz of the Applied Physics Laboratory at the Johns Hopkins University, one of the paper’s authors, suspected would be  “the most boring experiment ever” — they waited for something to happen.

    But in December 2013, Norris and co-author and cousin Jim Norris arrived in Death Valley to discover that the playa was covered with a pond of water seven centimeters (three inches) deep. Shortly after, the rocks began moving.

    Sailing StonesDeathValley


    ‘Element of luck’

    “Science sometimes has an element of luck,” Richard Norris said. “We expected to wait five or 10 years without anything moving, but only two years into the project, we just happened to be there at the right time to see it happen in person.”

    Their observations show that moving the rocks requires a rare combination of events. First, the playa fills with water, which must be deep enough to form floating ice during cold winter nights but shallow enough to expose the rocks. As nighttime temperatures plummet, the pond freezes to form thin sheets of “windowpane” ice, which must be thin enough to move freely but thick enough to maintain strength. On sunny days, the ice begins to melt and break up into large floating panels, which light winds drive across the playa, pushing rocks in front of them and leaving trails in the soft mud below the surface.

    “On Dec. 21, 2013, ice breakup happened just around noon, with popping and cracking sounds coming from all over the frozen pond surface,” said Richard Norris. “I said to Jim, ‘This is it!’”Sailing stones2

    These observations upended previous theories that had proposed hurricane-force winds, dust devils, slick algal films, or thick sheets of ice as likely contributors to rock motion. Instead, rocks moved under light winds of about 3-5 meters per second (10 miles per hour) and were driven by ice less than 3-5 millimeters (0.25 inches) thick, a measure too thin to grip large rocks and lift them off the playa, which several papers had proposed as a mechanism to reduce friction. Further, the rocks moved only a few inches per second (2-6 meters per minute), a speed that is almost imperceptible at a distance and without stationary reference points.

    “It’s possible that tourists have actually seen this happening without realizing it,” said Jim Norris of the engineering firm Interwoof in Santa Barbara. “It is really tough to gauge that a rock is in motion if all the rocks around it are also moving.”

    Individual rocks remained in motion for anywhere from a few seconds to 16 minutes. In one event, the researchers observed rocks three football fields apart began moving simultaneously and traveled over 60 meters (200 feet) before stopping. Rocks often moved multiple times before reaching their final resting place. The researchers also observed rock-less trails formed by grounding ice panels — features that the Park Service had previously suspected were the result of tourists stealing rocks.

    Rare events

    “The last suspected movement was in 2006, and so rocks may move only about one millionth of the time,” said Lorenz. “There is also evidence that the frequency of rock movement, which seems to require cold nights to form ice, may have declined since the 1970s due to climate change.”

    Richard and Jim Norris, and co-author Jib Ray of Interwoof, started studying the Racetrack’s moving rocks to solve the “public mystery” and set up the “Slithering Stones Research Initiative” to engage a wide circle of friends in the effort. They needed the help of volunteers who repeatedly visited the remote dry lake, quarried the rocks that were fitted with GPS, and maintained custom-made instruments. Lorenz and Brian Jackson of the Department of Physics at Boise State University started working on the phenomenon for their own reasons: They wanted to study dust devils and other desert weather features that might have analogs to processes happening on other planets.

    sailingrocks02“What is striking about prior research on the Racetrack is that almost everybody was doing the work not to gain fame or fortune, but because it is such a neat problem,” said Jim Norris.

    So is the mystery of the sliding rocks finally solved?

    “We documented five movement events in the two and a half months the pond existed and some involved hundreds of rocks,” says Richard Norris. “So we have seen that even in Death Valley, famous for its heat, floating ice is a powerful force in rock motion. But we have not seen the really big boys move out there….Does that work the same way?”

    Article taken from

    Scripps Institution of Oceanography, UC San Diego

    University of california.

    The Regents of the University of California