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Sealed in 09 April 2017 02:43:35
Opened at: 01 April 2018 04:45:00
Sealed with Dogecoin Photo of the year: First Detailed image of a Black Hole - Milky way's core

A supermassive black hole lurks at the center of our galaxy, but we’ve never seen it. We know it’s there, and that it has the mass of about 4 million suns, and that the stars in our galaxy revolve around it. But no one could tell you exactly what it looks like.
In fact, astronomers have never been able to snap a direct image of any black hole, ever. That’s because although the black holes at the center of galaxies are supermassive, they’re really far away. It’s akin to trying see a grapefruit, DVD, or bagel on the surface of the moon. You’d need a supermassive telescope, 1000 times the size of Hubble, to spot one.
Or, maybe, just eight telescopes working together. The Event Horizon Telescope (EHT), which is actually a network of eight radiofrequency observatories around the world, switched on for the first time on April 5. Between now and April 14, the observatories hope to gather enough data to piece together our first snapshot a black hole’s event horizon—the “point of no return” threshold after which nothing can escape the black hole’s gravity.
These telescopes will collect radio waves emitting from the supermassive black hole at the center of the Milky Way, as well as the neighboring galaxy Messier 87, and stitch them together into visual images. The EHT’s resolution is said to be about as good as being able to count the stitches on a baseball from 8,000 miles away.
Over at Nature, Davide Castelvecchi explains that instead of using just one very big mirror or antenna dish, the technique (called very-long-baseline interferometry) works by merging multiple observatories into “one virtual telescope—with an effective aperture as big as the distance between them.”
Heino Falcke, an astrophysicist at Radboud University in the Netherlands, told Popular Science that this project wouldn’t have been possible just a few years ago. The Atacama Large Millimeter Array, which has been fully operational since 2013, “adds a lot of sensitivity and image quality,” he says. “Also, we need to record and store an enormous amount of data—almost half a petabyte per telescope. That wasn’t feasible a few years ago.”
EHT’s goal isn’t just to see what our friendly neighborhood black hole is up to. The team, lead by astrophysicist Sheperd Doeleman at Harvard University, thinks that “seeing” a black hole for the first time could help lead to a theory of everything, uniting the laws that govern very small quantum mechanical physics with the laws that govern very big things in the universe.
The project also aims to learn more about how these gravitational anomalies pull in matter, and how they generate huge jets of plasma. It could also shed light on Stephen Hawking’s hypothesis that information that falls into a black hole must somehow leak back out.
After analyzing the vast amounts of data that will be generated by this experiment—about 2 petabytes for each of the four or five nights of observation—the EHT team hopes to have a picture ready in 2018.


Age: 12 months Observers 0 Views : 146 Owner: Dagger of Time
Owner: Dagger of Time
Sealed in 24 October 2015 22:29:04
Opened at: 31 March 2018 03:00:00
Sealed with Dogecoin European cars automatically call emergency services after a crash via the eCall system

The European Union has approved plans to install an emergency call feature in all cars and light vans from March 31st, 2018. The system, known as eCall, automatically contacts emergency services in the event of a crash, as determined by in-car sensors, such as those triggering the vehicle’s airbags. eCall establishes an audio connection with emergency operators and automatically transmits basic data including the vehicle's type, location, and the time of the crash. Passengers and witnesses will also be able to activate eCall manually by pressing an in-car button.

"The European Parliament has repeatedly stressed that reducing deaths and the severity of injuries on the roads is its priority," said Czech MEP Olga Sehnalova, the legislation's lead negotiator, in a statement. She added that the system will be "a public service, free of charge for all citizens, irrespective of the type of vehicle or its purchase price." Installing eCall is estimated to cost manufacturers €100 ($109) per car, although drivers wanting to retrofit it could expect to pay more. Sehnalova stressed that eCall will be completely dormant until the moment a crash occurs, telling BBC News that data is only transmitted once a car's airbags are triggered.

Last year, there were 25,700 fatalities on EU roads and motorways. eCall is expected to reduce emergency response time by 40 percent in built-up areas and 50 percent in the country, and it's believed the system could save as many as 2,500 lives each year. Sehnalova said eCall would also benefit tourists in the EU, because "when you cross a border you have a language problem and often do not even really know where you are." The vehicle's location is established using satellite navigation systems such as Galileo — the European equivalent of GPS.

Despite the potential benefits of eCall, some EU member states have objected to making it compulsory for all manufacturers. "The benefit of making eCall mandatory in all new cars does not justify the cost of implementing it," said Claire Perry, the UK's former transport minister, last December. "There was a view that, given the increasing responsiveness of our road network ... we did not feel that it was appropriate for the UK." However, even manufacturers disagree. Erik Jonnaert, head of the European Automobile Manufacturers' Association, welcomed the law, saying: "The industry feels that the final text strikes a good balance between saving lives and protecting data."


Age: 30 months Observers 0 Views : 643 Owner: eMerge
Owner: eMerge
Sealed in 23 March 2018 09:50:11
Opened at: 23 March 2018 20:00:00


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Sealed in 23 March 2018 07:46:40
Opened at: 23 March 2018 19:30:00

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Sealed in 23 March 2018 18:49:49
Opened at: 23 March 2018 18:49:49


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Sealed in 23 March 2018 09:48:47
Opened at: 23 March 2018 12:00:00


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Sealed in 22 March 2018 11:18:08
Opened at: 22 March 2018 19:00:00


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Sealed in 18 July 2016 18:24:11
Opened at: 22 March 2018 12:00:00
Sealed with Dogecoin Bill Gates' Nano Membrane Toilets start helping people in Africa to access clean water and generate energy from human waste

Five years after the Bill and Melinda Gates Foundation first challenged the world to design a sustainable and inexpensive toilet, researchers from Cranfield University may have a viable contender. It’s known as the Nano Membrane Toilet, and it was funded by the Gates Foundation in September 2012 for US $710,000.

March 22 is World Water Day, an appropriate time to highlight the grim fact that more than 2.4 billion people around the world still live in unsanitary conditions. Without access to clean running water, these at-risk communities face life-threatening sanitation-related diseases.

The Nano Membrane toilet’s design is meant to offset this scarcity. It’s waterless, easy to use, and provided it receives additional funding for field tests, could very well be part of the future of sanitation.

Alison Parker, a lecturer in International Water and Sanitation at Cranfield Water Science Institute, says her team’s new design is meant to serve poor urban areas, as those will be easiest to accommodate.

"It will be very hard to carry out the scheduled maintenance" in remote areas, Parker tells Tech Insider, mostly because the toilet needs maintenance every six months at a minimum to replace certain parts. "Instead, the toilet will be used in dense urban areas where a number of factors make providing good sanitation very challenging, but where it would be possible to facilitate visits from a maintenance technician."

The toilet’s actual design is rather complex.

After a person has done their business and closed the lid, the rotating toilet bowl turns 270 degrees to deposit the waste in a vat underneath. A scraper tool then wipes off any residual waste from the bowl.

The solid waste stays on the bottom while the liquid rises to the top.

Extremely thin fibres, known as nanofibres, are arranged in bundles inside the chamber. They help move the water vapour that exists as part of the liquid waste into a vertical tube in the rear of the toilet.

Next, water passes through specially designed beads that help condense the vapour into actual water, which flows down through the tube and settles in a tank at the front of the toilet.

As for the solid waste that’s left behind, a battery-powered mechanism lifts the remaining matter out of the toilet and into a separate holding chamber. There it’s coated in a scent-suppressing wax and left to dry out.

Every week, a local technician visits the community to remove the solid waste and water, and replace the toilet’s batteries if needed. Residents can then use the water for tending to their plants, cleaning their homes, cooking, and bathing. The solid waste ends up at a thermo-processing plant to be turned into energy for the community.

According to Parker, one toilet can accommodate up to 10 people for no more than $0.05 per day, per user - in line with the Bill and Melinda Gates Foundation’s original criteria for the prize. Field testing will begin later this year, Parker says.

One challenge moving forward, which other designs have run into, is scalability.

While many designs work in theory, actually getting the toilets to the countries that need them isn’t easy.

Local communities have to create jobs specifically so that the toilets are safely and effectively maintained, and that training process can take time. Some scientists have spent years working on their designs, and they still aren’t perfect.

Parker admits the problem of toilet paper is still one the Nano Membrane Toilet has yet to resolve, as users have no choice but to toss the paper into a nearby waste bin.

In the future, the team hopes to devise a way for that paper to be burnt. It’s not the most environmentally friendly disposal method, but if it means adding years onto people’s lives, it could be a winning solution.


Age: 20 months Observers 0 Views : 118 Owner: WWW.C
Owner: WWW.C
Sealed in 29 March 2016 19:04:28
Opened at: 15 March 2018 09:00:00
Sealed with Dogecoin World's biggest plane The Stratolaunch Carrier Aircraft launches first spacecraft from 30,000 feet above the Earth


The world's biggest plane is set to take off early next year in its groundbreaking first test flight.

The aircraft, named the Stratolaunch Carrier, is currently under construction at Mojave Air and Spaceport in California, and will eventually have a wingspan of 385 feet (117 metres).

It will be so huge that if the plane sat in the centre of a football field, it would be wide enough for its wings to reach 12.5 feet (3.8 metres) beyond each goalpost.

The idea is for the aircraft to act as a giant air pad in the sky, allowing payloads to reach space faster and at a lower cost than existing technologies.

The craft is the brainchild of Microsoft co-founder Paul Allen and Burt Rutan, founder of Scaled Composites - the same company blamed by Virgin for the SpaceShipTwo crash in October.

Last week, Virgin said the flight breakup of SpaceShipTwo was down to: 'Scaled Composite’s failure to consider and protect against human error and the co-pilot’s premature unlocking of the spaceship’s feather system.'

But the tragedy- which killed one pilot, Michael Alsbury, and left his co-pilot Peter Seibold, suffering major injuries - has not slowed down work in the Mojave Desert, according to a report in Kern Golden Empire.

The company today confirmed to that construction is going ahead as planned.

When its complete, the Stratolaunch Carrier aircraft will be powered by six 747-class engines.

Its 385 feet (117 metres) wingspan compares to 320 feet (97 metres) wingspan for the Hughes H-4 Hercules and 225 feet (68 metres) for the Boeing 747-8.

The plane will climb to 30,000 feet and launch a rocket at high altitude, avoiding the huge fuel costs of launching from Earth.

Initially, the system is intended to deliver satellites weighing up to about 13,500lbs (6,124 kg) into orbits between 112 miles and 1,243 miles (180 km and 2000 km) above Earth.


Wingspan: 385 feet (117 metres)

Engines: Six 747-class engines

Fuselage length: 238 feet (72 metres)

Weight: 1,200,000 lb (544,311 kg)

Maximum speed: 460 knots, 530 mph (850 km/h)

Maiden launch: Flight testing will begin in 2016. The first launch of the space launch vehicle is likely to take place in 2018.

Satellite delivery: Initially, the system is intended to deliver satellites weighing up to about 13,500lbs (6,124 kg) into orbits between 112 miles and 1,243 miles (180 km and 2000 km) above Earth.

Launch sites: Several sites are under consideration, including Kennedy Space Center, Wallops Island and Vandenberg AFB.

Instead of a satellite, the Stratolaunch airplane could also launch a Dream Chaser spaceship, which would be outfitted with an as-yet-unspecified upper-stage rocket motor.

'Dream Chaser seemed to be the logical way to go,' Stratolaunch Executive Director Charles Beames said in October.

'It could provide a highly responsive capability with the potential to reach a variety of LEO destinations and return astronauts or payloads to a U.S. runway within 24 hours,' Chuck Beames, president of Allen's Vulcan Aerospace added.

In April, billionaire Allen revealed that he had created a new company, 'Vulcan Aerospace', to oversee construction of the ambitious project.

The company will 'shift how the world conceptualises space travel through cost reduction and on‚Äźdemand access,' according to Vulcan Aerospace president Chuck Beames who made a presentation in Colorado Springs this week.

The Stratolaunch Systems project was inspired by SpaceShipOne which won the $10 million Ansari X Prize in 2004 for becoming the first privately funded manned vehicle to reach space.

'Stratolaunch's ability to launch from variable locations will enable satellites and humans to be efficiently inserted into their most optimal orbit at a time of the customer's choosing,' Beames wrote.

'Launching far away from populated areas (i.e. middle of the ocean) also significantly reduces public safety risk.

The rocket is being developed by Orbital ATK, and the designs uses solid-fuel lower stages and an upper stage powered by RL-10 engines.

But according to SpaceNews, Beames indicated that the company is also looking at other launch vehicle options.

'What we really want to do is focus on a lower-cost propulsion system that is evolvable in some fashion,' he said.

'We're still looking at Orbital as a potential option,' he said. 'We're widening our aperture to see if this is the right path forward.'

Stratolaunch could someday support several launch vehicles, he said.

As a result, Stratolaunch said it is temporarily halting work on a crewed vehicle that would launch on the Orbital ATK booster.

That company added that it is deferring work on a crewed vehicle that would launch on the Orbital ATK booster to focus more heavily on getting the Stratolaunch Carrier aircraft off the ground.

In February, the world received its first glimpse of a gigantic airplane.

Rare stills taken from footage shot for a recent news story by KGET 17, a Bakersfield TV station, show its huge size, according to a report by Guy Norris in Aviation Week.

The images show one of the two twin fuselage sections under assembly.

In the news report, Scaled Composites president Kevin Mickey says the company has so far built 'roughly 200,000lbs of composite structure' for the vehicle.

Each of the twin fuselages of the Stratolaunch Carrier aircraft is 238 feet (72 metres) long and, when complete, will be supported by 12 main landing gear wheels and two nose gear wheels.

Stratolaunch has produced computer-generated images and videos of the aircraft, but the TV footage was the first time images of the real vehicle have been shown.

Allen has previously said his project would 'keep America at the forefront of space exploration and give a new generation of children something to dream about'.

Several companies are competing to develop spacecraft to deliver cargo and astronauts to the International Space Station.

The Microsoft billionaire criticised the fact that government-sponsored space programmes are waning.

Nasa is paying Boeing and SpaceX to build the capsules and fly them from Cape Canaveral, which hasn't seen a manned launch since the shuttles retired in 2011.

Age: 24 months Observers 0 Views : 786 Owner: Lockheed Martin
Owner: Lockheed Martin
Sealed in 28 March 2015 17:18:16
Opened at: 14 March 2018 17:00:00
Sealed with Dogecoin From Scotland to space: Europe & UK’s first spaceport by 2018

The government will convert an existing airfield to handle space travel within the next four years

The UK will build a spaceport by 2018, with eight locations under consideration - many of which are in Scotland.

That's right: a spaceport. Like an airport, but destination space.

The Department of Transport is evaluating existing airfields for their suitability to become a spaceport, examining factors such as the weather - strong winds are a problem - and how it will affect the local environment and economy.

In more practical considerations, the spaceport will require a runway that's 3,000m long, the ability to segregate airspace so there's a dedicated area for space vehicles, and it will have to be away from densely populated areas "to minimise impact on the uninvolved general public".

In its report, the government noted that commercial sub-orbital spaceflights for paying passengers will kick off in the US by the end of this year via Virgin Galactic. It wants the UK to get in on the space-tourist action by becoming the centre for such activity in Europe.

Aside from the sheer joy that having a spaceport would bring, it would also result in boosting scientific research by attracting space firms, and spur the economy by creating jobs.

Since spaceplanes - spaceplanes! - are more dangerous than existing aircraft, they don't meet current regulatory requirements to carry paying passengers. The government is therefore considering changing laws to allow such "experimental" aircraft to take tourists.

"In the longer term, it is possible that spaceplanes will enable intercontinental travel at very high speeds," the report added. "There have been suggestions that by travelling on a sub-orbital trajectory, journey times from the UK to Australia could be cut from the current duration of around 20 hours to as little as two hours."

Aside from space tourism and weekend getaways to Brisbane, the spaceport will also allow satellite launches as well as delivery of cargo and scientific payloads into orbit. If all goes well, the government predicted the first sub-orbital flights will take place by 2018, followed by satellite launches in 2020, and orbital flights by 2030.


Here's a selection of the firms working on spaceplanes and how they work.

Airbus Defence and Space

This firm is working on a spaceplane the size of a business jet for tourism. It takes off in the same way as a standard plane using jet engines, and has a rocket engine to get into the sub-orbital trajectory. The flights will last an hour – but don't expect any gin and tonics: there's no in-flight service. Flights are hoped to start by the beginning of next decade.

Bristol Spaceplanes

This UK firm was founded in 1991. It's working on a plane called Spacecab, which hopes to be the first orbital spaceplane. Until then, it's working on a sub-orbital plane called the Ascender, which would carry one paid tourist and a crew member.

"It would take off from an ordinary airfield and climb to 8km at subsonic speed, before starting the rocket engine," the report noted. "It would then accelerate to a speed of around Mach 3 on a near-vertical climb and then follow an unpowered trajectory to reach a height of 100km."

Reaction Engines

This UK firm's SKYLON is an unmanned spaceplane, designed to carry satellites and cargo to the International Space Station (ISS). However, it could be used to carry space tourists or astronauts to the ISS too. Testing will begin in 2020 and, if all goes well, it will be operational by 2022.

It uses a specialised engine that hits Mach 5 before accelerating to Mach 25 "for orbital insertion".


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Age: 36 months Observers 0 Views : 548 Owner: InterStealer
Owner: InterStealer

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