Elon Musk a publié un document assez détaillé sur les réflexions et études de SpaceX pour préparer un voyage sur Mars, avec retour.
On y apprend notamment la taille de la fusée qu’ils envisagent pour envoyer une capsule sur MArs et la faire revenir, le carburant qu’ils pensent utiliser (du méthane cryogénique), et comment ils feront pour en avoir assez pour revenir (ils pensent le produire sur place).
Quand j’y avais été, il faisait très sec.
Magnifique film de Rob Stewart parlant de l’acidification des océans due notamment a l’augmentation de la concentration du CO2 dans l’atmosphère.
Film trouvé ici.
A voir en français ici.
Ou en anglais :
Histoire trouvée via Daring Fireball,
Someone shared this story on-line
“As an seven year old in about 1983, in the days before First Class Lounges at airports, I was with my grandad in Nice Airport and saw Roger Moore sitting at the departure gate, reading a paper. I told my granddad I’d just seen James Bond and asked if we could go over so I could get his autograph. My grandad had no idea who James Bond or Roger Moore were, so we walked over and he popped me in front of Roger Moore, with the words “my grandson says you’re famous. Can you sign this?”
As charming as you’d expect, Roger asks my name and duly signs the back of my plane ticket, a fulsome note full of best wishes. I’m ecstatic, but as we head back to our seats, I glance down at the signature. It’s hard to decipher it but it definitely doesn’t say ‘James Bond’. My grandad looks at it, half figures out it says ‘Roger Moore’ - I have absolutely no idea who that is, and my hearts sinks. I tell my grandad he’s signed it wrong, that he’s put someone else’s name - so my grandad heads back to Roger Moore, holding the ticket which he’s only just signed.
I remember staying by our seats and my grandad saying “he says you’ve signed the wrong name. He says your name is James Bond.” Roger Moore’s face crinkled up with realisation and he beckoned me over. When I was by his knee, he leant over, looked from side to side, raised an eyebrow and in a hushed voice said to me, “I have to sign my name as ‘Roger Moore’ because otherwise…Blofeld might find out I was here.” He asked me not to tell anyone that I’d just seen James Bond, and he thanked me for keeping his secret. I went back to our seats, my nerves absolutely jangling with delight. My grandad asked me if he’d signed ‘James Bond.’ No, I said. I’d got it wrong. I was working with James Bond now.
Many, many years later, I was working as a scriptwriter on a recording that involved UNICEF, and Roger Moore was doing a piece to camera as an ambassador. He was completely lovely and while the cameramen were setting up, I told him in passing the story of when I met him in Nice Airport. He was happy to hear it, and he had a chuckle and said “Well, I don’t remember but I’m glad you got to meet James Bond.” So that was lovely.
And then he did something so brilliant. After the filming, he walked past me in the corridor, heading out to his car - but as he got level, he paused, looked both ways, raised an eyebrow and in a hushed voice said, “Of course I remember our meeting in Nice. But I didn’t say anything in there, because those cameramen - any one of them could be working for Blofeld.”
I was as delighted at 30 as I had been at 7. What a man. What a tremendous man.”
LEGEND
En plat principal :
En dessert :
Insupportables les pubs sur Skype, elles créent des erreurs de domaine qui s’empilent les unes sur les autres. Je suis ENFIN tombé sur une solution qui fonctionne.
Pour ceux qui n’ont jamais été au Japon, voilà une vidéo qui vous donnera peut-être envie d’y aller !
Paramètres d’encodage recommandés pour la mise en ligne sur les sites de vidéos en ligne.
Conteneur : MP4
Le contenu doit être codé et mis en ligne avec la même fréquence d’images que lorsqu’il a été filmé.
Les fréquences d’images les plus courantes sont les suivantes : 24, 25, 30, 48, 50, 60 images par seconde (d’autres fréquences d’images sont également acceptées).
Le contenu entrelacé doit être désentrelacé avant d’être mis en ligne. Par exemple, un contenu 1080i60 doit être désentrelacé à 1080p30, pour passer de 60 champs entrelacés par seconde à 30 images progressives par seconde.
| Type | Débit vidéo, fréquence d’images standard (24, 25, 30) | Débit vidéo, fréquence d’images élevée (48, 50, 60) |
|---|---|---|
| 2160p (4k) | 35-45 Mbit/s | 53-68 Mbit/s |
| 1440p (2k) | 16 Mbit/s | 24 Mbit/s |
| 1080p | 8 Mbit/s | 12 Mbit/s |
| 720p | 5 Mbit/s | 7,5 Mbit/s |
| 480p | 2,5 Mbit/s | 4 Mbit/s |
| 360p | 1 Mbit/s | 1,5 Mbit/s |
| Type | Débit audio |
|---|---|
| Mono | 128 kbit/s |
| Stéréo | 384 kbit/s |
| 5.1 | 512 kbit/s |
