Science
The Lascaux cave : a Prehistoric sky-map…
17,000 years ago, the Lascaux painters offered the world a peerless work of art. However, according to a new theory, some of the paintings could also be the representations of the constellations as seen in the sky by our ancestors from the Magdalenian era. Such a hypothesis, confirmed in many others Paleolithic Caves, radically transforms our conception concerning prehistoric Rock Art, as well as the history of Astronomy. Actuality : 2009, International Year of Astronomy http://www.astronomy2009.org/
Photos ©Stephane Begoin-Pascal Goetgheluck/LightMediation Text ®Pedro Lima
Contact - Thierry Tinacci - LightMediation Photo Agency +33 (0)6 61 80 57 21 thierry@lightmediation.com
The birth of an ocean in the hottest desert on Earth.
The Danakil desert located in the Afar triangle by the name of the tribes who live there, the Afar people, in northern Ethiopia on the Erythrean border, is 155 000 km2 large. In this desert, considered as the hottest on Earth (max. 60° C) and maybe the most inhospitable, we witness in real time the spectacular genesis of an ocean! Here on a geological scale, inexorably, the African horn is drifting away from the continent, and under our eyes is undergoing one of the greatest achievement of Gaia, the creation of a mid ocean ridge within the African Great Rift Valley.
Photos and text ©Eitan Haddok/LightMediation
Contact - Thierry Tinacci Lightmediation Photo Agency +33 (0)6 61 80 57 21 thierry[AT]lightmediation.com
Malaria, the killing Machine.
One hundred years after the discovery that malaria is transmitted by mosquitoes, the indomitable disease remains Africa’s major problem. The World Heath Organisation estimates that malaria affects 300 to 500 million people and kills up to 2.7 million worldwide every year, 90% of them in sub-saharan Africa. Every five seconds, an African child dies of the disease.
Photographs ©Remi Benali/Lightmediation
Contact - Thierry Tinacci Lightmediation Photo Agency +33 (0)6 61 80 57 21 thierry[AT]lightmediation.com
A laboratory for the H-bomb
In 1996, France signed the Comprehensive Nuclear Test Ban Treaty (CTBT) after having completed in 1995 a final and resounding nuclear test campaign in the Pacific. Now, France has to find other ways to guarantee the performance of its thermonuclear weapons. To maintain a convincing strike force, without resorting to other nuclear tests, France created an ambitious Simulation programme whose aim is to put in an equation the physical phenomena involved in the ignition of a thermonuclear weapon.
Photos et text ©Hubert Raguet/Lightmediation
Plants for milking
“Plants for Milking” : a new non destructive technology for drawing on nature’s molecular plant riches. Plants are indispensable to the existence of mankind. They are the source of life, and without them we would be condemned to extinction. Their metabolisms are like factories that produce an infinite number of molecules of which new examples are constantly appearing. Their medicinal properties are well catalogued and researchers are increasingly turning to plant life to discover additional applications for all these active substances.
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- Auteur © Philippe Psaila /Lightmediation
- Date Sat, 19 May 2007 21:12:48 +0200
Micro UAV are watching us… Science-Fiction ?
October 2018, 10h15 PM. On platform 22 at the Gare de l’Est station, a traveller is wandering alone, watching out for the arrival of his suburban train. His eyes quickly sweep over the surroundings to make sure no policeman is around. He gets out a packet of cigarettes and puts one in his mouth. Rooted to the spot, he then sees two security agents who quickly handcuff him. Indeed, breaching the anti-smoking law is severely punished. How did they know? A few weeks before, newspapers had however announced that all fixed surveillance cameras would be inoperative in Parisian stations. What the poor fellow did not notice is the micro UAV floating in the air a few meters above his head. This scenario may not be as futuristic as it seems. All around the world, laboratories are working on these technologies.
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- guid microUAV.pdf
- Auteur Pictures and text: Hubert Raguet / LIGHTMEDIATION
- Date Sun, 29 Apr 2007 14:48:46 +0200
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Sur les traces de la grande cité d’Angkor.
Sur les traces de la grande cité d’Angkor.
A l’aide de technologies inédites, des scientifiques passent au peigne fin les temples khmers. Pour percer les secrets d’une capitale jadis florissante. Le dense forêt cambodgienne s’étend en toile de fond. Au premier plan, les majestueux visages taillés dans la pierre du temple Bayon, à Angkor, contemplent l’horizon. Les ancestrales divinités khmères restent impassibles, pourtant un spectacle insolite se déroulent sous leur yeux. A une vingtaine de mètres du sol, un ovni projette sur le monument un rayon laser rouge. Au sol, le Pr. Katsushi Ikeuchi et son équipe du laboratoire Computer Vision, de l’université de Tokyo, recueillent les données transmises par le dispositif. Leur objectif : scanner l’édifice et faire parler les pierres. Elles livreront peut-être une partie des secrets d’Angkor, l’immense cité qui, jusqu’à il y a près de huit cents ans, s’étendait ici, bien au-delà les temples aujourd’hui photographiés par les touristes.
Aux techniques archéologiques classiques, s’ajoutent désormais le laser multidirectionnel, le spectromètre et autres détections par image satellitaire. L’équipe japonaise pilote un grand ballon gonflé à l’hélium comme un cerf-volant géant. Celui-ci porte le dispositif de mesure par laser à longue fréquence. Lentement, il scanne lentement les statues colossales dans leurs moindres détails. Les données recueillies ces cinq dernières années ont déjà permis au Pr Ikeuchi de réaliser une reproduction virtuelle numérique en trois dimensions du temple Bayon dans son intégralité. Avec une précision millimétrique. En cas d’effondrement de Bayon, les archéologues pourraient le reconstruire à l’identique. L’impact des balles - vestige des guerres - comprises ! …
Photos ©Vo Trung Dung/Orizon/Lightmediation Texte ®Hervé Bonnot -un texte plus complet est disponible-
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TGV, a train out of ordinary…very high speed: It’s now!!
Yesterday, Tuesday 13 of February, in great secret, the high speed train TGV beat its own world speed record 26 years after the first launch. Since 17 years the French TGV holds the world record with 515 km/h. The articulated duplex trainset will complete a trial reach between 553 km/h! The goal is to check the performance of the material and equipment at the limit of their capacity. We want to show you how such record was possible
The masterpieces of the Cremonese stringed-instrument facing science.
The historical city of Cremona hides a secular know-how, the stringed-instrument manufacture. The today’s violin makers are the rigorous heirs of the talented Andrea Amati, inventor of the violin, his son Nicolo who was the most notorious member of the family, of Andrea Guarneri, father of the eponymous dynasty but also of the famous Antonio Stradivari, student of Nicolo Amati. They were the creators, the artists who made prestigious violins, violoncellos and violas which a great number arrived to us. Their prices reach astronomical sums. April 22, 2005 in New York, a Stradivarius of 1699 was sold for I,6 million Euros. One year later, an other one was sold for 2,7 million Euros.
Thanks to science, the acoustics experts can measure the frequency of the strings vibrations, the resonance so as the power intensity. Are they higher than all those since manufactured? Is the price difference of the yesteryear instruments in comparison of the contemporaries ones justified?
The chaotic history of Cremona left in legacy a historical center with rich and varied buildings and as much sacred than civil. Splendid arcades of Palazzo Comunale (13th century) which face the cathedral of Romanesque and Lombardic architecture partly encircle the Piazza del Comune, the artistic heart of the city. From there, runs a maze of lanes where the few 120 workshops of stringed-instrument makers are hidden…
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The lost civilisation of Baïkal lake
As far as we know, Baïkal held generations of hunters-fishers; but, says Andrzej Weber, between 4,000 and 5,000 years BC, there is a gap in history! This is where they made this amazing discovery: there is a hiatus of 1,200 years, a bio-cultural discontinuity among local populations bloodline. Why did the inhabitants of Neolithic disappeared ? Did their civilisation suddenly died out ? Andrzej Weber thinks that they were the victims of a climate catastrophe…
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- Lengh 2 467 028
- Author Marc Roussel / Orizon / Lightmediation
- Date Sat, 25 Nov 2006 08:38:36 +0100
