Showing posts with label Science. Show all posts
Showing posts with label Science. Show all posts

Saturday, December 12, 2020

Arecibo Observatory - drone and ground view during the collapse & pre-collapse historical footage

[video & text: National Science Foundation] 

 "This video, that starts with a view of the top of Tower 4, was taken from the vantage point of an Arecibo Observatory drone, utilized for monitoring the condition of Tower 4 support cables. Four cables are seen in the center of this video. The top cable does not support the telescope platform, but instead supports the catwalk described in the narrative for the previous video. The three lower cables are, from left to right, M4-1, M4-2, and M4-3. Note that a number of individual wire strands of the M4-1 and M4-2 cables are noticeably broken at the beginning of this video. The M4-3 cable does not appear to have any broken wires at the beginning of this video. The first indication of the coming failure is the breaking of another M4-2 wire, accompanied by a puff of "smoke" and chips of paint flying away from the surface of the cable. Four seconds later the entire M4-2 cable appears to disintegrate. The failure of M4-2 is followed a fraction of a second later by the demise of M4-1, followed a fraction of a second later by the failure of M4-3. The drone operator then swings the drone around to view the reflector dish and fallen platform, azimuth arm, Gregorian dome and the falling cables and catwalk. The top section of Towe 12, near the Visitor Center, can be seen tumbling down the hill to the left of the operations building. The Tower 12 backstay cables that connect the top of Tower 12 to the ground cause damage behind Tower 12, well away from the edge of the telescope dish."

Thursday, December 10, 2020

Live 🔴 Delta IV Heavy NROL-44 Launch Attempt

 The Delta IV Heavy rocket will launch the NROL-44 mission for the National Reconnaissance Office, Space Force and U.S. national defense on Thursday, pending range availability. Liftoff time is 6:15 p.m. EST (2315 UTC) from Cape Canaveral, Florida. Final preparations are proceeding at Space Launch Complex-37.


Orlando (USA - Florida)        Thursday, 10 December 2020, 20:05:00 EST UTC-5 hours 
Johor Bahru (Malaysia - Johor) Friday, 11 December 2020, 09:05:00   MYT UTC+8 hours 
Corresponding UTC (GMT)        Friday, 11 December 2020, 01:05:00    


The NRO is the U.S. government agency tasked with designing, building, launching and maintaining America's intelligence satellites.

Monday, June 11, 2012

Sci-Tech / Gadgets : Apple kicks Google Maps off iPhone,adds Facebook

Apple is kicking an important Google application off its iPhone and buddying up with Facebook rather than Google’s social network, as it distances itself from a bitter rival in the phone arena.

Google’s Maps application has resided on the iPhone since Apple launched the very first version of the phone in 2007. It’s one of the core apps on the phone, and can’t be deleted by the user.

But on Monday, Apple executives said Google Maps will be replaced by an Apple-developed app in iOS 6, the new operating system for iPhones, iPads and iPod Touches. It’s set to be released late this year.

Apple and Google are locked in a fight over the attention of hundreds of millions of phone users, and the advertising opportunities that come with owning a mapping application.

Smartphones from companies like Samsung and Google’s own Motorola division are the chief alternatives to the iPhone, and Apple has been suing those manufacturers in court, accusing them of ripping off the iPhone’s ground-breaking features.

Apple also said it’s building Facebook into iOS 6, snubbing the Google Plus social network. Users will be able to update their Facebook status by talking to their phones, and “like” movies and apps in Apple’s iTunes store, Apple executive Scott Forstall said.

The announcements were part of the keynote presentation that kicked off Apple’s annual Worldwide Developers Conference in San Francisco.

Apple presented new features in both phone and Mac software, plus updated laptops. But investors were mildly disappointed, as they expected more substantive news, like a hint of Apple’s ambition to get into making TVs. Analysts had speculated that Apple would at least update the software on the Apple TV, a small box that connects a TV set to iTunes for movie downloads, as a prelude to perhaps launching a fully integrated TV set.

Apple shares closed down $9.15, or 1.6 percent, at $571.17.

Apple updates its iOS software every year, to coincide with the launch of a new iPhone.

Among other updates in iOS 6, Apple’s voice-command application Siri will add a host of new languages, including Spanish, Korean and Mandarin Chinese, Forstall said. “She” will also be able to launch applications and movies, and will run on iPads for the first time.

Apple also said the new version of its Mac operating system, Mountain Lion, will go on sale next month for $20. The update brings features from Apple’s phone and tablet software, like the iMessage texting application, to the Mac.

Microsoft Corp., Apple’s competitor when it comes to computer software, is also making Windows more like its phone software, with the release of Windows 8 later this year. A key difference is that Microsoft is betting that PCs will have touch screens, while Apple is betting they won’t.

Mountain Lion will also bring dictation to Macs. Users will be able to input text by talking to the computer, in any program. This is already a feature of Microsoft Corp.’s competing Windows software.

On the hardware side, Apple showed off a laptop with a super-high resolution “Retina” display, setting a new standard for screen sharpness.

The new MacBook Pro will have a 15-inch screen and four times the resolution of previous models, Apple executive Phil Schiller said.

Apple already uses “Retina” displays with individual pixels too small to be distinguished by the naked eye in its latest iPhones and iPads.

On the phones and tablets, the Retina display is a standard feature. On the MacBook, it’s an expensive upgrade. The new MacBook will cost $2199 and up, $400 more than the non-Retina MacBook with the same-sized screen.

The new MacBook borrows features from the ultra-slim MacBook Air. It’s only slightly thicker, and like the Air, lacks a DVD drive. Instead of a spinning hard drive, it uses flash memory for storage. In the most radical departure from the last decades of PC design, it lacks an Ethernet port. Those who don’t want to use Wi-Fi to connect to the Internet will have to buy an adapter that goes into the MacBook’s “Thunderbolt” port.
The Hindu : Sci-Tech / Gadgets : Apple kicks Google Maps off iPhone, adds Facebook