Showing posts with label advanced. Show all posts
Showing posts with label advanced. Show all posts

9 Magical Harry Potter Gadgets You Could Actually Own | Dramel Notes

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Who wouldn’t like to live in the world of Harry Potter, surrounded by the glories of magic? But as Arthur C. Clarke wrote, any sufficiently advanced technology is indistinguishable from magic. Slowly but surely, science is catching up to the wonders you read about in the wonderful books written by J. K. Rowling.

Some of the magical doodads described in the Harry Potter universe have already come true, perhaps without you even realizing, while others are on the brink of becoming reality. We dived into the list of magical objects in the Potter books to see how close technologists are to bringing this whole world to life.

The Marauder’s Map

The Marauder’s Map is a magical map that shows every inch of Hogwarts School, along with the location of where every person is on campus. It’s a massive system to keep track of anyone, anywhere.

In the real world, someone actually made a Marauder’s Map! It’s a Chrome extension that shows the location of all your friends on Facebook Messenger. In fact, not just your friends, but anyone with whom you’re in a one-on-one or group chat. Yes, you may be sharing your location on Facebook without knowing it.

It’s not just Facebook though. Your smartphone, which is always with you, is sharing your location with several apps that you might not even be aware of.

Right now though, things haven’t become so bad that any random citizen can just bring up a map that shows the location of every other person in the world. A more practical implementation of the Marauder’s Map is in the form of something like the Weasley Clock.

Weasley Clock

While you wouldn’t want to make your current location public knowledge, it can be useful when used with the right people. For instance, tracking your family isn’t necessarily evil. The Weasley Clock does just that. The clock has nine hands, one for each family member, pointing to their current location, such as “Home”, “Work”, etc.

Smartphones again double up as child tracking tools for concerned parents, with plenty of apps that can serve every purpose and offering different levels of privacy for the kid. Even built-in tools like Apple’s Find My iPhone can double up to track a person.

The Weasleys have some of the coolest magical gadgets in the Potter world, including a flying car!

Flying Ford Anglia

Arthur Weasley, the head of the Weasley family, cast an enchantment on an old Ford Anglia to turn it into a flying car. It moves and drives just like a car, but well, to (almost) quote the immortal words of Doc Brown from Back To The Future, where it’s going, it don’t need roads.

As we noted in our ultimate guide to Back To The Future gadgets, two companies are already working hard on flying cars. The Terrafugia Transition is already functional but not on roads (or skies) yet because of various laws, while the AeroMobil 3.0 is ready to soar into our lives in 2017.

The Flying Ford Anglia has another neat feature: it can become invisible!

Invisibility Cloak

Who wouldn’t like the ability to become completely invisible to the naked eye? Harry Potter is gifted a magical invisibility cloak, which he uses on several occasions. Given how useful such a device would be, scientists are working hard on it and are closer than ever before.

The most famous demonstration of this technology was at TEDx, when engineer Baille Zhang showed the world’s first 3D invisibility cloak. Most scientists working on this idea are playing with the concept of bending light. Light bouncing off an object is what helps you “see” a 3D object. So these cloaks are trying to bend the light in a way where instead of bouncing back to you, it flattens.

Even though we’re getting close, we’re several years away from seeing it in our households. Invisibility cloaks would first make it into the defense industry, after which we might see their commercial use.

Omnioculars

One of the coolest but underrated gizmos in the Potter universe, the omnioculars are advanced binoculars. Imagine this: when you’re watching any sport live, you’ll not only be able to magnify your vision, you’ll also be able to zoom in on any particular player and track them automatically; watch replays (including slow-motion) of the action; and receive on-screen prompts informing you about the game.

In a nutshell, imagine going to a football game and getting the full TV experience of player tracking and replays right in the stadium. Sony is already making something similar to this, a pair of digital video-recording binoculars colloquially called “Vinoculars”.

Vinoculars can instantly replay anything you have just seen. But that’s where it ends. The other features, like on-screen prompts and automatic tracking, aren’t on the cards. Yet.

In a way, you could take the Vinoculars and add augmented reality like with Google Glass to provide those details. Going forward, we might even see LED contact lenses replacing all of this.

Pensieve

The Pensieve is one of the coolest devices in the Potter universe, which has been partially created in our digital world. The Pensieve is a memory storebox, accessible to anyone, with the ability to completely immerse a person as they experience those memories.

In a way, Facebook’s On This Day feature does that automatically, chronicling some of your memories which you can retrieve later. There’s also the practice of lifelogging, which you can narrow down to just photos and videos of your memories.

Of course, this is just a fraction of the Pensieve experience, since you can’t actually live out these digital memories, only look at them. But actually living someone else’s memories wouldn’t be possible, since technology only captures visual or auditory data, not thoughts, emotions, and the other things that make up our memories.

Two-Way Mirrors

Harry and Sirius Black use a two-way mirror to communicate with each other. One person holds the mirror and says the name of the other person, after which the two of them can see each other and communicate. Hello, free video chat on any smartphone platform!

Smartphones will undoubtedly be more useful, since the same “mirror” connects to any other “mirror” in the world. But there’s one catch: you need a data plan or network coverage of some sort, which the two-way mirror isn’t dependent on.

Moving Photographs

In the Potter universe, photographs aren’t still images, they usually move around within the frame, and sometimes even talk. While a conversational photo isn’t going to happen any time soon, we have made some strides towards moving photos.

The latest iPhone has introduced Live Photos, which is somewhere between a photo and a video. And of course, for the longest time, we have had GIFs, the language of the Internet.

Quick Quotes Quill

The world of magic and wizardry hasn’t embraced the digital age at all and insists on using quills to write things by hand. Let’s not get into the debate about whether handwriting should be taught in schools or if cursive writing is obsolete. The larger point is that in the Potter universe, these handwriting tools have many of the benefits that technology gives us.

For example, there’s the Quick Quotes Quill, a magical pen that captures whatever someone is dictating and writes it down. It’s basically voice-to-text technology, and as we’ve already seen, you can even write a full article with dictation now.

Similarly, there’s a Spell-Checking Quill. Spellcheck in Office is nothing new, and it’s even on our phones now in the form of autocorrect.

Which Magic Do You Want to be Real?

That concludes our list of magical gadgets you could soon own. So, Potter fans, let’s hear it… which of the various magic spells or enchantments from the Harry Potter universe do you want to be real?

Please tell us your thoughts in the comments section below. Bonus points if you can describe how technology can make it happen!

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Black Screens Do More Harm Than Good on LCD Monitors | Dramel Notes

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There are way too many monitor-related myths floating around, probable because monitor technology has advanced so quickly over the years. For example, “sit at arm’s length distance” and “screen radiation causes cancer” have both been debunked.

As it turns out, there’s yet another myth that no longer holds true: the myth that black screens conserve more energy. This just isn’t true for LCD monitors, and it hasn’t been for quite a while.

The myth comes from the days of cathode-ray tube (CRT) monitors. Due to the way that CRT monitors work, black pixels require no energy to produce, thus saving on electricity. Back then, this myth was indeed true, and back then, sites like Blackle.com really did reduce your PC’s power consumption.

LCD screens, on the other hand, produce light all the time. When an LCD screen needs to produce a black pixel, it just blocks the light from being shown and energy is being spent no matter what. In fact, on thinner LCD models, black screens actually end up using more energy!

So if you’re on an LCD screen, stop worrying. For those still using CRT screens, you may want to keep Blackle.com as your homepage for now.

Did you already know this? What other myths can you debunk for us? Share your thoughts in the comments below!

Image Credits: Black Laptop by GaudiLab via Shutterstock, Black CRT Monitor by NorGal via Shutterstock

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17 Things You Can Do with Siri on the New Apple TV | Dramel Notes

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The newest version of Apple TV has a lot of cool advanced features. Chief among these is Siri integration, which we’re betting a lot of people still don’t know how to use. Here then are 17 things you can do with Siri on it.

Siri is turning into one of our favorite digital assistants. Since its introduction just a few short years ago, Siri has become almost indispensable on the iPhone, allowing us to dash off texts, make calls, and look up information quickly without having to interact with our phones manually.

With the introduction of the Apple Watch, Siri now works from our wrists as well. So, we can now do things like show different glances, check the weather, and quite a few other neat tricks.

Now, Siri has also been integrated into the new Apple TV so you can perform many useful, mostly entertainment-related things, which we want to discuss in this article.

To access Siri, simply hold down the microphone button on the remote control, wait for Siri to pop up on your TV, and speak into the remote. You will need to continue to hold down the microphone button until Siri hears everything you say.

Turn on Closed Captioning and Subtitles

If you need to turn on closed captioning or subtitles, you can ask Siri to do both. In the following example, we turned on the closed captioning by telling Siri, “turn on closed captioning”.

Similarly, if you’re watching a foreign film and the subtitles are not on, you can turn them on by saying, “turn on subtitles”.

Search for Specific Movies

Are you itching to watch a certain movie but don’t want to search for it? No problem, just ask Siri to find it for you.

Click on a selection to open its information screen. You can then preview or play it depending on whether it is available on iTunes, Netflix, or another app on your Apple TV.

At the bottom of the movie’s page, you will see a list of related movies you can peruse if the one you selected doesn’t strike your fancy.

Find Movies by Actor and Type

You can ask Siri to show you movies starring a certain actor and then further constrain your search by type of movie.

For example, say you want to see what action movies Brad Pitt has starred in, you might say, “show me movies starring Brad Pitt” and then “that are action movies”.

Picking a movie will open to its information screen where you see we have options to preview it, buy it, place it on your wish list, or open it in iTunes.

Not all movies will be for sale as they might be available on Netflix or another app you have installed.

Check the Weather

Want to know what the weather is going to be like? Just ask Siri to show you.

Note, there is an arrow pointing upward, which mean you should swipe up to get the complete forecast.

You’re not limited to checking the weather locally, so if you want the forecast in another city, simply ask Siri to show you the weather there.

Watch Episodes of Your Favorite TV Shows

Stop scrolling and clicking when it comes to your favorite content. Now you can just ask Siri to play your favorite TV shows.

In the previous example, we asked Siri to “play Game of Thrones, season 3, episode 2” and it immediately began to play it.

Search for Movies by Genre

If you’re just looking for a comedy to watch, or maybe you’re in the mood for something dramatic, you can as Siri to show you movies by genre.

This is really useful if you know you want to watch something funny or action-packed but aren’t sure exactly what. Note, that when you click on a title, you’ll get the same type of options as with the other movie searches we’ve previously shown.

Check the Time Around the World

Want to know what time it is in London? Ask Siri to check for you.

This function is also available with Siri on the iPhone and Apple Watch as well, so if you own either or all of those devices, then you may already be familiar with them.

Check on Stocks

If you invest in the stock market, then you can check on your investments by asking Siri.

You can check stocks by a specific company, or you can see how the markets did in general such as “how did the stock markets do today”?

Search by Director or Writer

Want to find content by a specific director or writer? Siri can search that for you.

Similar to searching for a movie by name, select and click any of the titles in the list and you will be able to view its page and possibly watch it in iTunes, Netflix, or another entertainment app.

Find Movies by Studio

If you want to find movies by a certain studio, you can ask Siri to show them.

Again, choose a title from the list and it will open its page where you will see a synopsis and view options.

Find Content by Age Group

Need to search for kid-friendly content? No problem, just ask Siri to find movies or TV shows by age group.

As usual, click on a title and you’ll see options to preview, add it to your wish list, buy it, or possibly view it in Netflix, Hulu, iTunes, etc.

Control Playback

You can control playback using Siri, which extends far beyond the simple play and pause stuff. You can also ask it to skip ahead or rewind a duration, such as if your movie watching was suddenly interrupted and you forgot to pause playback.

For example, if you want to skip ahead, you can ask Siri to “skip ahead [forward] x minutes [seconds or hours]” or you can say “go back [rewind] x minutes [seconds or hours]”.

Launch Applications

Just as with you iPhone and Apple Watch, you can use Siri to launch applications.

Simply say, “open Photos” or “launch Netflix” and the app will open right up.

Repeat What Someone Said

Are you having a hard time understanding a a particular piece of dialog in a TV show or movie? Ask Siri “what did he [she] just say”? and it will automatically rewind 15 seconds.

Find out Who Stars in a Movie or TV Show

Have you ever been watching a movie or TV show and tried to figure out who a particular actor is? Now you can ask Siri to show you.

So, for example, you’re watching Insomnia and you can’t place an actor’s face. Simply ask Siri, “who starred in Insomnia”? and it will show you.

Ask Questions About Sports

Siri knows sports and can answer many of your sport-related questions such as “what was the score of the Cavaliers game”?

You can ask for far more than scores. You can ask for a team’s record, player stats, upcoming games, and more.

Ask Siri What it Can Search

If you want to know more about what Siri can search for, simply ask.

As you can see from the above screenshot, you have a few other options. You can also find titles by ratings, reviews, dates, character names, and more.

For example, you could ask Siri to find you action movies that are rated PG, or you could have it locate TV shows about Sherlock Holmes.

We’re still tapping into the potential of Siri on the Apple TV, if you know of other things it can do, or if you have a question you would like to pose, please let us know by lending us your feedback in our discussion forum.

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Simplify Command-Line Package Management with APT instead of apt-get | Dramel Notes

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APT, the Advanced Package Tool from the Debian project, is for managing packages by using a lot of separate tools to accomplish various tasks. In the past, users needed to know multiple command structures like apt-get, apt-cache, apt-config, and many more to utilize the full feature-set of APT.

APT was created originally to solve a lot of package management problems like putting an end to the dependency hell that so many people experienced in the early days of Linux-based operating systems. Unfortunately, APT suffers from a different kind of hell, something I call “Dispersed Documentation Hell” (DDH). The documentation related to APT is scattered in various different tools and in some cases, such as the main apt command, practically impossible to find.

For over a decade, practically all tutorials and guides for installing and removing packages on a Debian/Ubuntu based system have been suggesting apt-get to users. In the past, that was the correct suggestion because “apt” as a command hadn’t existed at the time but due to the Dispersed Documentation Hell a lot of people aren’t aware that now it does exists.

If you wanted to install a package almost all guides will suggest:

sudo apt-get install package

but now instead you can simplify that with

sudo apt install package

Some may argue that “apt” isn’t much different than “apt-get” and that is true but I think the hyphen in the command is what creates a bottleneck for many users due to its awkwardness. Using apt instead will save time and save the amount of keystrokes required to accomplish the same task.

Dispersed Documentation Hell (DDH)

The fundamental problem with the documentation regarding APT is that depending on where you look and how you look, you may or may not find anything at all. If you were to search Google, or DuckDuckGo, for “apt documentation” you’d find one of three types of results:

  1. apt-get related documentation
  2. Basic overview information regarding APT
  3. Completely unrelated information

If you were to throw “linux”, “ubuntu”, or even “debian” into the search query the types of results you’ll receive won’t change. The DDH is so severe that you’ll find documentation from Debian.org marked as Obsolete Documentation before you’ll find anything useful related to the “apt” command, if you ever find it at all.

Man Pages

Man Pages are documentation pages that can be used locally on your system or via online directories. Local entries may or may not be up to date depending on the version of your distro. For example, Ubuntu 15.10 has the latest man page but 14.04 does not by default. However, if you keep your 14.04 version of Ubuntu up to date with service packs then you should have the updated man page. You can check to see if you have the latest version of the man page with the command below.

man apt

On the other hand, if you were to search for the man page online then you will almost always find the old overview man page. If you were to keep digging, though, you may uncover the Ubuntu 15.10 man page which is up to date or instead you may uncover the online 14.04 man page which is out of date.

Simplify the Command-Line with APT

The list below contains the most useful options available via the apt command and what old commands they simplify.

  • apt install package(s)
    • replaces apt-get install package
  • apt remove package(s)
    • replaces apt-get remove package
  • apt search query
    • replaces apt-cache search query
  • apt show package(s)
    • replaces apt-cache show package(s)
  • apt update
    • replaces apt-get update
  • apt upgrade
    • replaces apt-get upgrade
  • apt list –installed
    • replaces dpkg –get-selections | grep -v deinstall
    • replaces dpkg -l
  • apt list –upgradable (sudo not required)
    • replaces apt-get -u upgrade –assume-no” (sudo required)
  • apt edit-sources
    • replaces echo ‘new line of text’ | sudo tee -a /etc/apt/sources.list
    • replaces sudo nano /etc/apt/sources.list

Linux Mint is Enhancing Simplicity

Most of the recent operating systems based on Debian or Ubuntu have the up to date version of APT that allows for some tasks to be simplified but the Linux Mint team decided that APT should be simplified quite a few years ago. Linux Mint created a python script (started in 2009) to make APT as useful and as simple as possible. I hope that Debian sees the benefit of expanding the functionality of apt so that in the future everyone can benefit from the simplified approach that Mint is taking. The apt command can be so much better than it is right now and hopefully Debian sees this as well and brings apt to its full potential.

Linux Mint decided to make an interesting choice in their script by removing the need to use sudo. For example, if you run “apt install package” it will automatically apply sudo to the front of it during processing so the user doesn’t need to remember if something needs sudo or not, the script will apply it or not accordingly.

The list below contains the most useful additional options available via the Linux Mint apt command and what old commands they simplify. Note: the following list only applies to Linux Mint users at the moment.

  • apt autoclean
    • replaces apt-get autoclean
  • apt autoremove
    • replaces apt-get autoremove
  • apt purge package(s)
    • replaces apt-get remove –purge package(s)
  • apt depends package(s)
    • replaces apt-cache depends package(s)
  • apt rdepends package(s)
    • replaces apt-rdepends package(s)
  • apt policy package(s)
    • replaces apt-cache policy package(s)
  • apt held
    • replaces dpkg –get-selections | grep hold
  • apt hold package
    • replaces echo package hold | sudo dpkg –set-selections
  • apt unhold package
    • replaces echo package install | sudo dpkg –set-selections
  • apt download package (downloads the deb file of a package)
    • replaces LC_ALL=C apt-cache depends package |grep -v “Conflicts:|Replaces:”|awk ‘{print $NF}’|sed -e ‘s/[<>]//g’|xargs aptitude download -r

APT: Do More with Much Less

The apt command has simplified a lot of tasks with command-line package management on the Linux (Debian-based) desktop and with Linux Mint taking the initiative to improve it further, hopefully it will help the community transition to the new method. The only command that I noticed Linux Mint’s apt script missing thus far is “apt add-repository” to replace the awkward add-apt-repository command, so I wrote a patch to add this feature to the script. I’m pleased to inform you that they have accepted my patch so this feature will be available in a future release of Linux Mint.

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