Author: Dr. Bill

If the Emperor has one out there, we aim to find it! Or, Dyson spheres, or ringed systems, whatever!

Hunting for Alien Megastructures

“It’s a big galaxy out there. Even the most skeptical scientist has to accept that if a civilisation like our own exists, then there’s a good chance we’re not the only one to have ever done so. When most people think about SETI (the search for extraterrestrial intellgence), they imagine someone like Ellie Arroway searching the skies for radio transmissions. But what about looking in other ways? Perhaps a highly advanced alien civilisation might build structures large enough for us to see.
Vast structures, constructed on astronomical scales by advanced civilisations, is what the field of astroengineering is all about. This, admittedly, sounds audacious – and for the human race right now, it is. For us, astroengineering is still very much the realm of thought experiments, theoretical calculations, and science fiction. So it may be surprising to know that certain astronomers have made some quite serious attempts to look for astroengineered artifacts around other stars. With telescopes becoming ever more sensitive, and images being taken of exoplanets, the idea is starting to captivate imaginations once more.

“In 1960, Freeman Dyson published a paper entitled Search for Artificial Stellar Sources of Infrared Radiation. His suggestion was that any megastructure constructed around a star should show itself by emitting more infrared light than it should. The solution was, simply, to look for any sources of infrared which appeared artificial.

Dyson put forward the ideas that any potentially advanced civilisation may need a tremendous amount of power to sustain itself. A method he proposed was to build a vast array of satellites which would enclose an entire star to harvest its energy – a concept which later came to be known as a Dyson sphere. While the concept wasn’t taken too seriously by Dyson himself, it was a powerful enough notion that it garnered a lot of attention.

Unfortunately, it isn’t as simple as looking for infrared light. Many stars, our own included, are surrounded by a disk of dust, and that dust emits plenty of infrared. To find a Dyson sphere, you need to look for a specific signature of infrared light, emitted at just the right set of wavelengths.
And that’s just what an ongoing project, headed by Dick Carrigan at Fermilab, has been doing. Astronomers regularly survey the sky to see what they might find, and Carrigan has been hunting through infrared data to search for Dyson spheres. To date, the project has a handful of candidates, but nothing definitive. Not yet.

But infrared isn’t the only way to spot Dyson spheres. In 2012 Geoff Marcy, an exoplanet researcher, was given a grant to hunt for evidence of Dyson spheres in data recorded by Kepler. In principle, any large artificial objects in orbit around other stars should be detectable in exactly the same way exoplanets are.”

Yep, you read that right! They went from taking away the Start Button, to building it into their mice! Gotta love the way Microsoft sticks to their guns! It is even blue. The Sculpt mouse comes to two varieties, “Comfort” and “Mobile.” They will be available soon for around $30.00.

Google has a plan to get WiFi to developing countries, and it involves satellites, blimps, and ubiquitous WiFi! Can WE be a developing country too? Sigh.

Report: Google developing fund for wireless networks in emerging markets

“Google has already demonstrated its interest in making high-speed Internet across the United States with through the Fiber project, but it looks like the tech giant has a global plan too.

The Wall Street Journal reported on Friday that the Mountain View, Calif.-based company is working on a monetary fund to build wireless networks in emerging markets.

Google hasn’t commented publicly on the report or the fund yet.

But according to the WSJ story, based on unnamed sources, these are the main points to know.

The fund is expected to fuel wireless infrastructures primarily in rural areas where wired Internet connections aren’t available, especially in Southeast Asia and Sub-Saharan Africa.

It still remains to be seen how Google plans to go about this project, either by building the networks itself or partnering with local wireless companies — or some balance of both, depending on the market.

Such an initiative does fall in line with some of Google’s more philanthropic schemes and rhetoric, much of which CEO Larry Page reiterated at Google I/O in San Francisco last week.

But getting more people online and enabling them with wireless connectivity also has possibility to boost the mobile user base in these regions, outfitting them as prime consumers for low-cost Android smartphones, featurephones, and even tablets.”

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So, I am ALWAYS proud to be a geek! But, today, we are reminded to indulge in our geekiness!

Wikipedia: “Geek Pride Day (Spanish: Día del orgullo friki ) is an initiative to promote geek culture, celebrated annually on 25 May. The date was chosen as to commemorate the release of the first Star Wars film, A New Hope on 25 May 1977 (see Star Wars Day), but shares the same date as two other similar fan “holidays”: Towel Day, for fans of The Hitchhiker’s Guide to the Galaxy trilogy by Douglas Adams, and the Glorious 25th of May for fans of Terry Pratchett’s Discworld.

The initiative originated in Spain in 2006 as “Día del Orgullo Friki” and spread around the world via the internet.”

Geek Pride Day Geekstakes on Facebook!

And… of course, it TOTALLY rocks! Best Linux desktop in existence (in my humble opinion!)

Linux Mint 15 Announcement

Here’s my buddy, Steven J. Vaughan-Nichols, take on it!

Mint 15: Today’s best Linux desktop (Review)

“As the years roll-by, every new update of Linux Mint impresses me more. Other desktop operating systems, such as Microsoft’s Windows 8 may abandon the tried-and-true windows, icons, menus, and pointer (WIMP) desktop metaphor. Others, such as Ubuntu with Unity try to keep some of the WIMP interface while expanding it for tablets and smartphones, but the Ubuntu-based Mint, with Cinnamon and MATE, has stayed true to the WIMP interface. As far as I’m concerned the latest version, Linux Mint 15, Olivia, is now not merely the best Linux desktop, it’s the best desktop operating system of all.

That’s not to say that if you’re a Windows 7 or Mac OS X Mountain Lion user you should start downloading Mint now. For desktop users Mint is better than Windows 8 and other new operating systems, such as Fedora 18 with GNOME 3.6, but it doesn’t knock the socks off older WIMP-based desktops. It’s just much better for experienced desktop users than the newer, user-hostile desktop interfaces as such as Windows 8’s Metro.

Why? The main reason is that Cinnamon, which is the Mint interface I chose to review rather than its close GNOME 2.x-based relative MATE, is designed for power-users who already know how to use a WIMP-style desktop. A Windows XP or 7 user who’s never touched Linux in their life will find Mint Cinnamon far more user-friendly than Metro.

You don’t have to take my word for it. You can download Linux Mint 15, which is now is a release candidate, and try it for yourself. Just keep in mind that thanks to Windows 8’s Secure Boot system lock-in, it’s very difficult to install any other operating system on a Windows 8 PC. The easily way of installing Mint, or anything else, on a Windows 8 is to use your PC’s Unified Extensible Firmware Interface (UEFI) settings to turn Secure Boot off.

With the built-in Secure Boot bug out of the way, I think you’ll find Mint to be an exceptional desktop. In my own case, I tested 64-bit Mint on two systems. The first is a Dell XPS 8300. This powerhouse desktop comes with a 3.4GHz quad-core Intel Core i7 processor. It also has 8GBs of RAM, a 2-Terabyte hard drive, and an AMD/ATI Radeon HD 5770 graphic card. My other test system is my tank of a laptop, a Lenovo ThinkPad T520 laptop. This computer boasts a 2.5GHz Intel Core i5 Processor, 4GBs of RAM, a 500GB hard drive and an integrated Intel HD Graphics 3000 processor.

On both systems, Mint ran flawlessly. This included automatic support for the ATI graphics, a Logitech QuickCam Pro 9000, and various Wi-Fi hardware. The days when Linux had trouble with commonplace PC hardware is history. In the event, you do have exotic hardware, however, Mint now includes a Driver Manager to make it easier to manage which driver to use with your devices.

Under the hood, hardcore Linux users will find the Linux 3.8 kernel. Mint stands on the shoulders of giants. It’s built on top of Ubuntu 13.04, which, in turn, is based on Debian Linux.

Cinnamon itself is now up to version 1.8 and contains over a thousand new improvements and fixes since its last major version. The latest version of the Cinnamon file manager, Nemo, makes it simple to switch from multiple viewpoints including the oldie, but goodie, file-tree view. It also now comes with a feature that I’ve never been that much in love with: free-standing desktop applications. KDE users know them as Plasmoids, Android users know them as widgets, and I think they’re a waste of desktop space whatever you call them. But, since every desktop operating system seem to have one version of them or another, I guess a lot of people must like them and now Mint Cinnamon has them under the name of Desklets.

Above this, Mint has the usual selection of end-user software. This includes LibreOffice 4.02 for the office suite: Thunderbird 17.05 for e-mail; Firefox 21 for Web browsing, Pidgin 2.1 for instant-messaging and so on. Say, you have your own favorite applications, as I do, Mint’s Software Manager doubles as an app store and makes finding, downloading, and installing new programs easy. In my case, I switched in Evolution for Thunderbird and Chromium, Google’s pure open-source version of Chrome, for the Web browser. Installing software in Linux now is as trivial as installing a new program on an iPhone.

You can also add Linux programs that aren’t available through the Mint Software Manager. For these, simply download the DEB package version of the program, usually marked as being for Ubuntu and Debian, download it and then open the file. The package manager automatically starts and in a few seconds you’ll have such programs as Google Chrome and the Steam game client. All of these programs, whether they came with the default set or added on, ran as smoothly as silk.

I only have one serious beef about the Mint’s default software choices. They picked Totem, GNOME 3.x’s media player, for video-playback. VLC, to my way of thinking, is simply the best media-player software on any platform. Fortunately, VLC is in the Software Manager so it’s easy to install

The only really annoying thing about Mint is that you still can’t do in-place updates from an older version to Mint 15. That’s by design. Mint’s developers feel that you’ll avoid out of date software incompatibilities by forcing you to do a fresh install. True, but it also means you may need to back up and restore your home directories and files. I did this by restoring them up to an attached USB drive.

Finally, Mint has the same advantage that any Linux distribution has over its competitors: Its design is far more secure than Windows. There are such things as Linux viruses, but there have been only a handful of mostly harmless ones.. Practically speaking, Linux is the safest full desktop operating system you can run.

So, if you were to tell me today that you want a new desktop that works like your old XP Windows 7, or Ubuntu GNOME 2.x desktop, Mint 15 is what I would recommend. Yes, if you have Windows programs that won’t on Linux, or Mac OS X, then you may need to stick with Windows, but for experienced computer users, Mint 15 is now the best desktop operating system out there.”

How strongly do I feel that way? Those two test machines? They’re also my main two production systems. I’ve already made the Mint 15 upgrade and I’m glad I did.