NASA La Lune enregistre sa plus forte explosion de météorite depuis le début des observation en 2005

Les spécialistes de la NASA qui observent depuis 2005 les chutes de météorites sur la Lune, ont fixé la plus puissante explosion depuis le début des observations.

L'explosion qui s'est produite suite à la chute d'un météorite sur la superficie de la Lune a été 10 fois plus éclatante que toutes les explosions précédentes.

Les spécialistes observent toutes les explosions produites sur la superficie lunaire afin d'évaluer le niveau de danger pour les futures expéditions sur la Lune.



Source: http://lemondeintemporel.blogs.lalibr...

http://french.ruvr.ru/2013_05_17/Puis...

http://ufoetscience.wordpress.com/201...

Jorge Lorenzo thinks he's got it, as Rossi is unable to take advantage of new tires

from Twowheelsblog

Even if Jorge Lorenzo didn’t take the pole position at Le Mans pipped by Marc Marquez by mere 0.030 seconds, the Yamaha rider is quietly confident that he can take on the two Repsol Honda riders.

“All weekend we’ve been working pretty much to improve the feeling on the front tyre, where we had some difficulties at Jerez, and trying to improve the bike to keep a more consistent pace. I think we’ve got it. I also concentrated on doing a very fast lap but unfortunately I couldn’t beat Marc today because he was really fast, but our main target was to improve the bike for the race and I think we’ve done that. We’ll see tomorrow,” said Lorenzo.

Valentino Rossi’s strong suit has never been qualifying. In 279 GP race starts he has had only 59 pole positions which we can compare to team mate Jorge Lorenzo who has 182 GP starts and already has 53 pole positions.

The new 15 minute qualifying format puts the Italian rider in a quandrary, unable to use, and above all trust a new soft tire right off, something that Lorenzo, Pedrosa and Marquez are able to do without batting an eye, so they almost always qualify on the front row, while he lingers more often than not on the third row.

Rossi doesn’t have a bad race pace, but his position on the grid will penalize him again. He isn’t fast in the first two or three laps of the race where the usual three front runners build up their advantage and escape from the rest of the field, while the Yamaha rider finds himself bottled up and jockeying for positions unable to give chase.

Today’s qualifying was another example and another disappointment for Rossi, who admitted that he just can’t take advantage of the extra grip from a new tire and still isn’t content with his braking, which has always been his strong suit. The Italian is getting older and is becoming too much of perfectionist and his squad is always chasing an elusive set-up that will give him the 100% confidence that he wants, and the situation is becoming a vicious cycle.

“Like the other races, in the qualifying I am unable to do what I want,” said Rossi. “When I try to push more I create some problems with the bike. The other riders are better than me at using the extra grip from the new tyre, so I have to start from the third row. My rhythm is not so bad so we have to try to fix something. My rhythm and pace for the race is quite good, unfortunately Lorenzo, Marquez and Pedrosa are a bit faster.

Rossi also said that a tire issue (it was flaking) this morning’s practice session that set him backwards.

“Unfortunately today was a worse day compared to yesterday. We started quite badly this morning because we had some problems with the rear tyre so we struggled very much in the practice. We had a lot of question marks so we wanted to try the same setting this afternoon. In fact the tyre had a problem because this afternoon it was not so bad.”

Moto GP ; Marc Marquez takes Le Mans pole position

from Twowheelsblog

We’ve run out of accolades to describe the super talented Marc Marquez. The Repsol Honda rookie did it again as he took his second pole position of the 2013 season in today’s qualifying session at the Bugatti circuit at Le Mans.

If a pole position in the Austing GP was more than expected at the French circuit, Marquez learned the layout so well so well that he posted a flying lap in a stunning 1:33.187, shrugging off his FP4 crash just fifteen minutes before QP2.

Only the hammering laps of Jorge Lorenzo could keep up with the Repsol Honda rider and he finished a mere 0.030s adrift, but just checking out the time sectors you can see that the Yamaha rider is a war machine more than prepared for tomorrow’s race.

Andrea Dovizioso took the third spot on the front row, and giving Ducati their first front start after Nicky Hayden’s last year qualifying result at Jerez. Dovizioso also managed to pip by just 0.006s a battered and heroic Cal Crutchlow for the position, proving that the Ducati does like the French circuit.

Fifth fastest was Alvaro Bautista who also a little battered after his crash yesterday and he’ll have a fellow Honda rider next to him Dani Pedrosa. The Repsol Honda had posted the second best time but then crashed out at turn 3 - the Dunlop chicane - that has caught out so many riders this weekend which left his down in sixth.

Opening the the third row will be Stefan Bradl, while Valentino Rossi has another horrible qualifying ending up 8th and more than eight tenths of second from his own team mate, losing a massive amount of time in the braking sections of the first and third sectors. Bradley Smith took ninth and just two tenths slower than Rossi, while Nicky Hayden rounded out the top ten with Aspar CRT riders Aleix Espargaro and Randy De Puniet in 11th and 12th.

2013 MotoGP Le Mans QP2 results:

01- Marc Marquez – Repsol Honda Team – Honda RC213V – 1’33.187
02- Jorge Lorenzo – Yamaha Factory Racing – Yamaha YZR M1 – + 0.030
03- Andrea Dovizioso – Ducati Team – Ducati Desmosedici GP13 – + 0.416
04- Cal Crutchlow – Monster Yamaha Tech 3 – Yamaha YZR M1 – + 0.422
05- Stefan Bradl – LCR Honda MotoGP – Honda RC213V – + 0.447
06- Dani Pedrosa – Repsol Honda Team – Honda RC213V – + 0.452
07- Alvaro Bautista – GO&FUN Honda Gresini – Honda RC213V – + 0.797
08- Valentino Rossi – Yamaha Factory Racing – Yamaha YZR M1 – + 0.822
09- Bradley Smith – Monster Yamaha Tech 3 – Yamaha YZR M1 – + 1.035
10- Nicky Hayden – Ducati Team – Ducati Desmosedici GP13 – + 1.055

2013 MotoGP Le Mans Starting Grid:

01- Marc Marquez – Repsol Honda Team – Honda RC213V
02- Jorge Lorenzo – Yamaha Factory Racing – Yamaha YZR M1
03- Andrea Dovizioso – Ducati Team – Ducati Desmosedici GP13
04- Cal Crutchlow – Monster Yamaha Tech 3 – Yamaha YZR M1
05- Stefan Bradl – LCR Honda MotoGP – Honda RC213V
06- Dani Pedrosa – Repsol Honda Team – Honda RC213V
07- Alvaro Bautista – GO&FUN Honda Gresini – Honda RC213V
08- Valentino Rossi – Yamaha Factory Racing – Yamaha YZR M1
09- Bradley Smith – Monster Yamaha Tech 3 – Yamaha YZR M1
10- Nicky Hayden – Ducati Team – Ducati Desmosedici GP13
11- Aleix Espargaro – Power Electronics Aspar – ART GP13
12- Randy De Puniet – Power Electronics Aspar – ART GP13

5 things you didn’t know about the Mercedes S-Class

Despite much general coverage in the media, there are still some secrets when it comes to the S-Class, or ‘special class’ Mercedes. For example, were you aware of the unofficial, armoured version of the W108/109? Here are five facts we’ve discovered...

---

The first ABS


From the autumn of 1978, Mercedes-Benz offered the 450 SEL 6.9 W116 series, boasting optional anti-lock brakes that had been developed in partnership with Bosch. While ABS is today taken for granted in even the smallest and cheapest production cars, its launch in the ‘6.9’ created a sensation.

Unprecedented potential


Not only was the 6.0-litre V12 W140 the first mass-produced 12-cylinder Mercedes-Benz, but with a rated output of 408HP it was the most powerful Mercedes-Benz passenger car engine of its time. 

Forerunner of the luxury diesels


From May 1978, the W116 model range welcomed the 300 SD engine, a forerunner of today's familiar luxury diesel. The 3.0-litre five-cylinder diesel-engined version came complete with a turbocharger – Europe’s first turbodiesel – and was initially tested in the C111 experimental vehicle (top picture). 

Advanced air-con

The W140 S-Class which went into production at the start of the 1990s had one of the most advanced air-conditioning systems ever seen in a car. At the time, the joys of separate temperature controls for the driver and front passenger were almost unheard-of; never mind such details as seat heating on all four seats, and the activated carbon filter that took pollutants from the air when the sensor detected them in the cabin.

Unofficial protection


A special version of the W108/109 series 280 SEL 3.5 was made for German diplomatic missions worldwide. For the first time since the days of the 600 Pullman, the Stuttgart company produced a big, armoured saloon in order to protect the then-West German Government’s senior staff in countries seen to be at high risk. South America, for example, was an area where some of the 28 examples were delivered from May 1971 to September 1972.

Text: Sven Jürisch Classic Driver
Photos: Mercedes-Benz