Connect with us

Technology

Euro space boffins hatch comms satellite hijack plan to save Earth from extinction • The Register

Voice Of EU

Published

on

Space calamity boffins at Airbus and the European Space Agency (ESA) have come up with a new take on that old “massive, rogue impactor striking the Earth and wiping out all life on the planet” chestnut.

Rather than sending teams of astronauts, cosmonauts, and unlikely groups of oil workers to destroy the incoming rock with nuclear weapons, the European rocket scientists reckon they could knock it off course by pelting it with hijacked communications satellites.

The Airbus/ESA whitecoats felt that if humanity detected a possible asteroid impactor early enough to give us three years’ warning, given the time it would take for any solution to get to the point of impact, it still might not give us enough time to create, build, and launch a suitable defence.

This means that if we were going to try and deflect the asteroid (a proposal which is probably easier and more predictable in its results than trying to blow it up, as depicted in the movies Armageddon and Deep Impact), we would ideally need something that is big, heavy, steerable, and numerous.

Fortunately for us, we already have an ample supply of such resources. Modern comms satellites are chunky beasts that can weigh between four and six tonnes. They normally live on geostationary orbits around the Earth’s equator, in a band 22,236 miles (35,786km) from the planet’s surface. They also have engines to keep them on station and aligned with the relevant transmitters on Earth.

And there are also a lot of them, with 15 such satellites being ordered in 2019 alone. This means that during any given year, there will normally be more than a dozen comms satellites at various stages of construction.

The Airbus/ESA plan – known as the Fast Kinetic impactor Deflection mission, or FastKD – is to “hijack” the production of those satellites at whatever stage they are at, remove the communications equipment, install a new kinetic deflector (KD) pack incorporating more engines and control gear, load it on a rocket, and launch it at our potential incoming doom.

Although the six-tonne interceptors would be tiny in comparison to the 1000-ft (304.8m) diameter asteroid projected in the FastKD study*, if the world was able to get them launched quickly enough to hit the rock far enough away, the tiny changes in trajectory caused would hopefully be enough to nudge it away from its collision course.

The speed of the project is therefore key. Given a time of three years between detection and projected Earth impact, the FastKD timeline allows only six months for political decision-making and the commandeering, adaptation and testing of under-construction satellites. It also allows only a one-month window to launch all of the necessary vehicles, in order to have them hit the incoming asteroid in quick succession for maximum effect.

Despite the difficult timeframe, Albert Falke, the project lead at Airbus, thinks it is possible.

“These telecommunication platforms, in addition to being large and heavy, are also built with quite a high frequency,” he said in an interview with Space.com. “That means we can expect them to be available readily in the integration facilities. That’s something we can take for granted.”

With a prospective extinction-level impact on the cards, you’d hope so. Having the birds ready to be hijacked is not the only possible problem, though.

“The bottleneck will be the rockets,” Falke added. “[But] we think we could expect about 10 to 15 launches available within one month around the entire globe.” This sounds optimistic, but it’s that or we all die so you’d hope everyone would be on board.

After launch, the kinetic deflectors would cruise for 6-18 months before hopefully hitting their target. Our continued survival as a species would at that point depend on the boffins getting their maths right.

They will be helped in this by the NASA DART (Double Asteroid Redirection Test) project, which is on track to intercept an asteroid called Didymos in September next year. NASA then intends to crash an 600kg impactor into Didymos’s 160m (520ft) diameter moonlet at a speed of 6.6km per second (4.1 miles per second) just to see what happens.

Hopefully the DART project will allow impact-dodging scientists of all kinds to perfect their extinction-avoidance techniques in a way that will not make Liv Tyler cry, a criteria which everyone agrees exceeds all others in importance. ®

Youtube Video

*Although FastKD does not give a mass for the asteroid, the similarly sized 99942 Apophis – which is expected to come within 19,800 miles (31,900km) of Earth in 2029 – is estimated to weigh around 61 million tonnes. We at The Register suspect an impact by such an object would make Liv Tyler very, very unhappy indeed, so is to be avoided at all costs.

Source link

Technology

GeckoLinux Rolling incorporates kernel 5.16 • The Register

Voice Of EU

Published

on

Most distros haven’t got to 5.15 yet, but openSUSE’s downstream project GeckoLinux boasts 5.16 of the Linux kernel and the latest Cinnamon desktop environment.

Some of the big-name distros have lots of downstream projects. Debian has been around for decades so has umpteen, including Ubuntu, which has dozens of its own, including Linux Mint, which is arguably more popular a desktop than its parent. Some have only a few, such as Fedora. As far as we know, openSUSE has just the one – GeckoLinux.

The SUSE-sponsored community distro has two main editions, the stable Leap, which has a slow-moving release cycle synched with the commercial SUSE Linux Enterprise; and Tumbleweed, its rolling-release distro, which gets substantial updates pretty much every day. GeckoLinux does its own editions of both: its remix of Leap is called “GeckoLinux Static”, and its remix of Tumbleweed is called “GeckoLinux Rolling”.

In some ways, GeckoLinux is to openSUSE as Mint is to Ubuntu. They take the upstream distro and change a few things around to give what they feel is a better desktop experience. So, while openSUSE has a unified installation disk image, which lets you pick which desktop you want, GeckoLinux uses a more Ubuntu-like model. Each disk image is a Live image, so you boot right into the desktop, give it a try, and only then install if you like what you see. That means that GeckoLinux offers multiple different disk images, one per desktop. It uses the Calamares cross-distro installation program.

SUSE has long been fond of less common Linux filesystems. When your author first used it, around version 5 or 6, it had ReiserFS when everyone else was on ext2. Later it used SGI’s XFS, and later still, Btrfs for the root partition and XFS for home. These days, it’s Btrfs and nothing but.

Not everyone is such an admirer. Even after 12 years, if you want to know how much free space you have, Btrfs doesn’t give a straight answer to the df command. It does have a btrfsck tool to repair damaged filesystems, but the developers recommend you don’t use it.

With GeckoLinux, these worries disappear because it replaces Btrfs with plain old ext4. There are some nice cosmetic touches, such as reorganised panel layouts, some quite nicely clean and restrained desktop themes, and better font rendering. Unlike Mint, though, GeckoLinux doesn’t add its own software: the final installed OS contains only standard openSUSE components from the standard openSUSE software repositories, plus some from the third-party Packman repository – which is where most openSUSE users get their multimedia codecs and things from.

We tried the new Cinnamon Rolling edition on our trusty Thinkpad T420, and it worked well. Because openSUSE doesn’t include any proprietary drivers or firmware, the machine’s Wi-Fi controller didn’t work right. (Oddly, it was detected and could see networks, but not connect to them.) So we had to use an Ethernet cable – but after an update and installing the kernel firmware package, all was well.

GeckoLinux did have problems with the machine’s hybrid Intel/Nvidia graphics once the Nvidia proprietary driver was installed. That’s not uncommon, too – Deepin and Ubuntu DDE had issues too.

This does reveal a small Gecko gotcha. Tumbleweed changes fast, and although it gets a lot of automated testing, sometimes stuff breaks. All rolling-release distros do. Component A depends on a specific version of Component B, but B just got updated and now A won’t work until it gets an update too, a day or two later.

This is where upstream Tumbleweed’s use of Btrfs can be handy. Btrfs supports copy-on-write snapshots, and openSUSE bundles a tool called Snapper which makes it easy to roll back breaking changes. This is a pivotal feature of SUSE’s MicroOS. In time, thanks to ZFS, this will come to Ubuntu too.

GeckoLinux doesn’t use Btrfs so doesn’t have snapshots, meaning when things break, you have to troubleshoot and fix it the old-fashioned way. If only for that reason, we’d recommend the GeckoLinux Static release channel.

Saying that, until we broke it by playing with GPU drivers, it worked well. Notably, it could mount the test box’s Windows partition using the new in-kernel ntfs3 driver just fine. Fedora 35 failed to boot when we tried that so that’s a definite win for GeckoLinux.

For Ubuntu or Fedora users who want to give openSUSE a go, GeckoLinux gives a slightly more familiar and straightforward installation experience. The author is especially fond of the Xfce edition and ran it for several years. The system-wide all-in-one YaST config tool in particular is a big win. ®

Source link

Continue Reading

Technology

Globalization Partners to create 160 new jobs at Galway EMEA office

Voice Of EU

Published

on

Recruitment tech company Globalization Partners is doubling its staff headcount in Galway to 320 in 2022 to aid its continuing growth.

Recruitment technology company Globalization Partners has announced plans to create 160 new jobs at its Irish base in Galway. The jobs boost will see the company double its Galway staff headcount to 320 in 2022. Jobs will be available across the board at the company’s Galway office, which serves as its EMEA centre of excellence.

The announcement comes following a major funding injection for the international firm. Globalization Partners recently raised $200m in funding from Vista Credit Partners, an organisation focused on the enterprise software, data and technology markets. The investment now values Globalization Partners at $4.2bn.

While its Galway facility will benefit from a major jobs boost, the company plans to continue to expand its share in the global remote working market. As well as the Galway growth, the company will also be expanding its teams in other locations.

Click here to check out the top sci-tech employers hiring right now.

Globalization Partners provides tech to other remote-first teams all over the world. Its platform simplifies and automates entity access, payroll, time and expense management, benefits, data and reporting, performance management, employee status changes and locally compliant contract generation. Its customer base includes CoinDesk, TaylorMade and Chime. The company’s new customer acquisition increased two-and-a-half fold from 2020 to 2021.

“Globalization Partners is uniquely positioned to capitalise on the massive opportunity we see ahead of us,” said Nicole Sahin, the company’s CEO and founder.

Sahin said her company’s combination of tech with its global team of HR, legal and customer service experts “who understand the local customs, regulatory and legal requirements in each geography we serve” were key to its success.

David Flannery, president of Vista Credit Partners said that the company’s role “in transforming the remote work industry has been truly remarkable.”

Flannery said that as a customer of Globalization Partners, his organisation had “witnessed first-hand” the company’s “best-in-class legal compliance, the quality of the user experience, and the deep expertise and support they provide,”

He added that the two companies would work to “further capitalise” on the “untapped” global remote working market, expanding their platform to new customers in new markets.

“Over the past decade, we have invested hundreds of millions of dollars in our business, building our global presence and technology platform to support the evolving and complex talent needs of growing companies,” said Bob Cahill, president of Globalization Partners. “With Vista as our investment partner, we will be able to drive further growth and continue building innovative products to meet the increasing needs of our customers at scale.”

Don’t miss out on the knowledge you need to succeed. Sign up for the Daily Brief, Silicon Republic’s digest of need-to-know sci-tech news.

Source link

Continue Reading

Technology

How to speed up your broadband internet | Wifi

Voice Of EU

Published

on

Do a speed check

Find out the speed you are getting using a computer connected to your router via an ethernet network cable. Many routers and other devices come with one, or they cost about £5 separately.

You may also need a USB ethernet adapter (about £10) if your computer does not have a port built-in.

If you can’t connect via ethernet, use a modern phone, laptop or tablet on wifi as close to your router as possible with a clear line of sight.

Ookla’s Speedtest.net and Netflix’s Fast.com are reliable speed-testing services.

Some more advanced routers have speed testing services built into them, too. They are typically accessible via a router’s settings pages in your browser or a companion app, if they have one.

Woman setting up home office connection
Connecting your device to the router with an ethernet cable can improve speeds. Photograph: Tetra Images/Getty Images/Tetra images RF

If your broadband is slow at the router, it might be time to switch providers. Some fixed-line ISPs offer speeds in excess of 200Mbps in certain areas, while 4G/5G home broadband is an alternative.

If you are not getting near the speed your ISP advertises, you may be able to get a discount, or switch to a plan with higher speeds.

Work out what you need

When it comes to broadband the faster the better, particularly with multiple people and devices using the internet at once. However, the minimum speed needed for most online activities is fairly slow.

Video calling services, such as Zoom, typically need up to 4Mbps upload and download.

Online gaming services, such as Xbox Live, need at least 3Mbps down and 0.5Mbps up, while game streaming services need a minimum of 10Mbps down.

Video streaming, such as Netflix, needs at least 5Mbps for HD or 25Mbps for 4K content.

The median broadband speed in the UK is 50.4Mbps down and 9.8Mbps up, according to data from Ofcom in March 2021. That means that the majority of connections should be able to handle most popular services.

But bear in mind that with more than one device, or person, using your connection simultaneously, including updates and downloads when idle, slower broadband packages can quickly get choked.

Reposition your router

If your broadband connection is fast enough but your wifi is weak, there are things you can do. If possible, move the router closer to the centre of the house, or towards the rooms in which you need the strongest signal. Keep it in the open, not in a cabinet, and away from solid and metallic objects.

And try to position it away from dense walls, particularly those made out of concrete blockwork or with pipes and wires running through them.

Check your settings

Most modern routers will automatically select the best settings for your home, but you can manually check using the web interface of your router accessed through a browser on a computer. Consult the help pages for your ISP’s router for how to do so.

Wifi operating at 2.4GHz uses a range of frequency “channels”, only some of which do not overlap with each other. To reduce interference from your neighbours’ wifi, switch to channel 1, 6 or 11, which do not overlap, and therefore are less likely to cause or suffer interference.

If you have a connection under 200Mbps, enabling prioritisation or “quality of service” for your key devices, might help. This stops other things from sucking up all the available bandwidth – it will prevent a game download on an Xbox cutting off a video call on your laptop, for instance.

Set a strong wifi password using at least WPA2 security, not the lowest WEP option. This will make sure no wifi thieves can log on to your network and steal your bandwidth.

Check your devices

An internet slowdown may be down to your devices rather than your router. For older computers, upgrading the wifi adapter may help. USB wifi 5 adapters cost under £15, while the latest wifi 6 models cost about £50, but you will need a compatible router to take advantage of the extra speed.

For a non-portable device, such as a media streamer or a console, use an ethernet cable if it is close to the router, as this will be faster and more reliable than wifi.

If you have about 40 devices connected at once, consider disconnecting unnecessary ones to help provide more bandwidth for those you need most.

Weaker routers struggle with lots of devices connected at once.

Extend the wifi reach

If your wifi can’t reach parts of your house you can extend the signal of your current router with add-on gadgets.

Powerline networking devices use your home’s power cables to transmit data. They typically cost between £20 and £70. They plug into standard electrical sockets with one connected to the router via an ethernet cable, and others placed about the home providing ethernet ports and/or wifi for your devices. The speed you get through them is dependent on the condition of your electrical wiring.

Wifi extenders (£25-70) do a similar thing, but simply connect to your router via wifi, then rebroadcast it for other devices.

A network switch (under £20) can add more ethernet ports to your router if you need to connect more devices.

Upgrade to a better router

Mesh wifi systems
Mesh wifi systems come in various shapes and sizes, spreading your broadband all over your home using a series of wirelessly interconnected satellite units. Photograph: Samuel Gibbs/The Guardian

Replacing your existing router is often the most effective way to improve your wifi, but is also the most costly. Before committing to a third-party router, speak to your ISP as it may be able to provide you with a more modern one for free. Virgin and other ISPs are currently rolling out more powerful wifi 6-capable routers.

Otherwise, there are broadly two options: a beefy single router with much more powerful wifi broadcasting ability than the cheap one provided by your ISP, or a mesh system, which uses a series of satellites dotted about your home to blanket it in wifi.

Both typically use your existing router as a modem and then broadcast their own more robust wifi network.

Single unit wifi 6 routers start at about £60 but can reach the hundreds for powerful gaming-orientated devices. They connect to your old ISP box via ethernet cable, which means they are often easier to place in a more central area of your home. Running a long ethernet cable under floorboards, carpets, behind skirting boards or picture rails, or just under furniture can help keep things neat.

Good wifi 5 mesh systems start at under £100 for a triple pack of satellites, which should be enough for most homes with connections under 200Mbps. For those with faster broadband, good tri-band wifi 6 models cost about £300.

Source link

Continue Reading

Trending

Subscribe To Our Newsletter

Join our mailing list to receive the latest news and updates 
directly on your inbox.

You have Successfully Subscribed!