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Selasa, 17 Januari 2012
Sixty YouTube Space Lab Finalists Announced: Vote Now For Your Favorites
A few months ago we set 14-18 year olds the bold challenge to design a science experiment that could be performed by NASA aboard the International Space Station, something that has traditionally been the preserve of qualified astronauts and scientists. Coming up with a suitable idea required huge imagination, passion and scientific curiosity, which is why we were thrilled with your response—we received a total of 2,000 video submissions from students in more than 80 countries!
Expert scientists helped us check and rank all of the entries, and today we are very proud to announce the sixty finalists. All of their submissions can now be viewed on the YouTube.com/SpaceLab Channel, and from January 17–24, you can vote for the ones you want to win. We need your help selecting the six regional winners, and ultimately the two global winners that will have their experiments performed 250 miles above Earth and live streamed on YouTube. Start voting today.
Remember, the channel is also a launchpad to some of the best space and science videos on YouTube. We’ve already received more than 39 million combined video views worldwide and we’re adding new videos and playlists regularly, like this new playlist about the mysteries of the Red Planet. Subscribe to the channel to keep up to date with all the latest content.
Didn’t make it to the final round? Check out the newly launched Google Science Fair 2012 for another chance to enter an amazing global science competition.
Posted by Zahaan Bharmal, YouTube Space Lab lead, recently watched “Living in Space: 225,000 Miles Above Earth.”
Expert scientists helped us check and rank all of the entries, and today we are very proud to announce the sixty finalists. All of their submissions can now be viewed on the YouTube.com/SpaceLab Channel, and from January 17–24, you can vote for the ones you want to win. We need your help selecting the six regional winners, and ultimately the two global winners that will have their experiments performed 250 miles above Earth and live streamed on YouTube. Start voting today.
Remember, the channel is also a launchpad to some of the best space and science videos on YouTube. We’ve already received more than 39 million combined video views worldwide and we’re adding new videos and playlists regularly, like this new playlist about the mysteries of the Red Planet. Subscribe to the channel to keep up to date with all the latest content.
Didn’t make it to the final round? Check out the newly launched Google Science Fair 2012 for another chance to enter an amazing global science competition.
Posted by Zahaan Bharmal, YouTube Space Lab lead, recently watched “Living in Space: 225,000 Miles Above Earth.”
Senin, 28 November 2011
Calling all budding scientists: Deadline extended to enter YouTube Space Lab
Last month we challenged you to come up with an idea for an experiment that an astronaut can carry out in space, for the chance to watch NASA astronauts conduct it aboard the International Space Station live on YouTube next year. We know the many registered teams out there are busy preparing their experiments for YouTube Space Lab, so we’re extending the deadline by a week to December 14, 2011 to help get your entry just right.
Here’s YouTube Space Lab Judge, Professor Stephen Hawking, to inspire you to join if you haven’t registered already:
Be sure to read the How to Enter guide on our YouTube channel to learn what you need to do to submit your entry. You can also read about the amazing prizes for the regional and global winners, ranging from ZERO-G flights to an authentic astronaut training experience in Russia.
And if you just want to watch cool space videos? We're regularly adding playlists on the channel from What is space?, to Early Pioneers, and the US vs USSR. There's more to come so make sure you subscribe to the channel to keep up with the latest.
Be sure to read the updated official rules and blast off to YouTube Space Lab today!
Zahaan Bharmal, YouTube Space Lab lead, recently watched "Mars Science Laboratory Lifts Off for Red Planet."
Here’s YouTube Space Lab Judge, Professor Stephen Hawking, to inspire you to join if you haven’t registered already:
Be sure to read the How to Enter guide on our YouTube channel to learn what you need to do to submit your entry. You can also read about the amazing prizes for the regional and global winners, ranging from ZERO-G flights to an authentic astronaut training experience in Russia.
And if you just want to watch cool space videos? We're regularly adding playlists on the channel from What is space?, to Early Pioneers, and the US vs USSR. There's more to come so make sure you subscribe to the channel to keep up with the latest.
Be sure to read the updated official rules and blast off to YouTube Space Lab today!
Zahaan Bharmal, YouTube Space Lab lead, recently watched "Mars Science Laboratory Lifts Off for Red Planet."
Minggu, 28 November 2010
Uploading 101 with Professor Compressor
This week in Howcast’s ‘Modern 101 for emerging digital filmmakers’ we’re pleased to welcome guest lecturer, Professor Compressor. Professor Compressor is one of the most revered thinkers in web video and is renowned for his ability to compress and upload videos using the proper codecs, in the correct aspect ratios, and at the precise data rate, so that they look, as he would say, ‘wunderful!’ Professor Compressor comes to us through the magic of video all the way from an Indian archipelago via Eastern Russia to share his expertise on uploading great-looking web video.
Thank you for watching Professor Compressor’s compression video! Here you can find all the pertinent notes from today’s lecture:
What is a codec?
A codec is the format in which you compress your video. It could be a variety of different formats, but the most modern, powerful, and commonly used codecs are H.264 and MPEG-4.
Why H.264 and MP4 (MPEG-4)?
H.264 and MP4 are wunderful codecs! They allow you to have a tremendous quality video at a fraction of the file size. Lets look at a theoretical example:
You’ve finished editing and have made a beautiful 1920x1080 master file. But it is in the Apple Pro Res format, and is over 2GB. This file won’t work for the web. The video codec is too large and the file size is too big. Inevitably you will end up with a low quality video, because the master file is not designed and optimized for the web.
Take that file and transcode it into an H.264. Since web players are designed to work seamlessly with H.264, you won’t have to worry about choppy or corrupted playback. And H.264 encodes your video in such a way that you won’t see a noticeable drop in image quality. What you will see is your 2GB master file shrink to less than 500MB -- perfect for the web!
Help, my footage looks stretched or squished and there are black bars bordering the footage!
This is a common problem that results from uploading an incorrect frame size. When uploading, you need to make sure the video is in the correct frame size for the player. This could be a variety of different frame sizes, varying from SD to HD, so check your website’s FAQ on uploading for instructions. The most common frame sizes are: 640x360, 640x480, 720x480, 1280x720, and 1920x1080.
This problem could also result from an incorrect Pixel Aspect Ratio. Pixel Aspect Ratio (or PAR) can be a little confusing, but the simple way to think of it is that this setting tells your program what aspect ratio to encode your video, at the pixel level. It determines how the digital information is presented and viewed onscreen. I recommend square pixels for HD, PAL for PAL, and NTSC for NTSC, though this can vary.. The best option is to play around with this setting when exporting until you get your video looking pristine.
Help, my video looks muddy and detail is lost. My text looks almost pixelated and the video is generally very low quality.
Low image quality is usually due to a low data rate when exporting your video. When exporting your video, you’re given many options; one of these is data rate. Setting the data rate to automatic will usually result in the best image. It is also highly recommended to do a multi-pass encode. It will take longer than a single-pass encode, but it will result in a much smoother video with higher image quality.
Well, that was a lot of information! Digest it, experiment, and start uploading those WUNDERFUL videos!
Nardeep Khurmi, Howcast’s Post Production Specialist (a.k.a Professor Compressor) recently watched "Pygmy Jerboa".
Thank you for watching Professor Compressor’s compression video! Here you can find all the pertinent notes from today’s lecture:
What is a codec?
A codec is the format in which you compress your video. It could be a variety of different formats, but the most modern, powerful, and commonly used codecs are H.264 and MPEG-4.
Why H.264 and MP4 (MPEG-4)?
H.264 and MP4 are wunderful codecs! They allow you to have a tremendous quality video at a fraction of the file size. Lets look at a theoretical example:
You’ve finished editing and have made a beautiful 1920x1080 master file. But it is in the Apple Pro Res format, and is over 2GB. This file won’t work for the web. The video codec is too large and the file size is too big. Inevitably you will end up with a low quality video, because the master file is not designed and optimized for the web.
Take that file and transcode it into an H.264. Since web players are designed to work seamlessly with H.264, you won’t have to worry about choppy or corrupted playback. And H.264 encodes your video in such a way that you won’t see a noticeable drop in image quality. What you will see is your 2GB master file shrink to less than 500MB -- perfect for the web!
Help, my footage looks stretched or squished and there are black bars bordering the footage!
This is a common problem that results from uploading an incorrect frame size. When uploading, you need to make sure the video is in the correct frame size for the player. This could be a variety of different frame sizes, varying from SD to HD, so check your website’s FAQ on uploading for instructions. The most common frame sizes are: 640x360, 640x480, 720x480, 1280x720, and 1920x1080.
This problem could also result from an incorrect Pixel Aspect Ratio. Pixel Aspect Ratio (or PAR) can be a little confusing, but the simple way to think of it is that this setting tells your program what aspect ratio to encode your video, at the pixel level. It determines how the digital information is presented and viewed onscreen. I recommend square pixels for HD, PAL for PAL, and NTSC for NTSC, though this can vary.. The best option is to play around with this setting when exporting until you get your video looking pristine.
Help, my video looks muddy and detail is lost. My text looks almost pixelated and the video is generally very low quality.
Low image quality is usually due to a low data rate when exporting your video. When exporting your video, you’re given many options; one of these is data rate. Setting the data rate to automatic will usually result in the best image. It is also highly recommended to do a multi-pass encode. It will take longer than a single-pass encode, but it will result in a much smoother video with higher image quality.
Well, that was a lot of information! Digest it, experiment, and start uploading those WUNDERFUL videos!
Nardeep Khurmi, Howcast’s Post Production Specialist (a.k.a Professor Compressor) recently watched "Pygmy Jerboa".
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