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Smartphone Camera Apertures

 

Gizmag looks at smartphone lens aperture, and why it's important

Gizmag looks at smartphone lens aperture, and why it’s important (Credit: Simon Crisp/Gizmag).

Lens aperture is increasingly up there with megapixels when it comes to the camera specifications that smartphone makers like to boast about, but what exactly do those numbers mean? Here we look at what aperture is, how it works, and what it means to your smartphone photography.

Aperture is essentially an opening of a lens’s diaphragm through which light passes. It works much like the iris and pupil of an eye, by controlling the amount of light which reaches the retina. A bigger aperture hole lets your smartphone camera sensor gather more light, which it needs to produce quality images.

The size of a lens aperture is described by its F-number, which is calculated using the lens focal length to the diameter aperture. As such, a larger F-number refers to a smaller hole, and therefore less light getting through. This is why smartphone camera manufacturers brag about larger apertures, with smaller F-numbers. read more

New iPhone 7 Leaked

Apple’s iPhone 7, expected to be revealed in September, will not have a headphone socket, a new leaked case design has shown.

The move has been rumored for several months, with Apple believed to be preparing a range of wireless headphones to launch with it.

The latest leak from nowhereelse.fr comes, the site claims, from a reliable case manufacturer.

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The latest leak from nowhereelse.fr shows a case with no headphone socket, but in their place holes believed to be for stereo speakers.

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Take a Selfie – Pay a Bill

The technology is demonstrated at the Mobile World Congress in Barcelona

The technology is demonstrated at the Mobile World Congress in Barcelona (Credit: Mastercard)

If paying for something with your smartphone still seems like a strange concept, then news that you’ll soon be able to do so with a selfie is likely all the more confusing. Indeed, though, MasterCard is set to roll-out both facial recognition and fingerprint payment authorization. read more

LiFi Faster and More Secure Than WiFi

In just two years, the lights in your home may provide you with internet access at speeds 100 times faster than Wi-Fi.

At the Mobile World Congress in Barcelona this week, French start-up Oledcomm demonstrated the capabilities of Li-Fi, using just an office lamp to start playing a smartphone video.

Li-Fi uses visible light communication like the ‘digital equivalent of Morse code,’ so it cannot pass through walls. This gives it the potential to create a faster and more secure network, with less interference.

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This new wireless system hit speeds of 224 gigabits per second in the lab, and has the potential to revolutionize internet usage. The Li-Fi technology uses visible light between 400 and 800 terahertz (THz), and transmits messages through binary code
This new wireless system hit speeds of 224 gigabits per second in the lab, and has the potential to revolutionize internet usage. The Li-Fi technology uses visible light between 400 and 800 terahertz (THz), and transmits messages through binary code

A FASTER, MORE SECURE WI-FI

Lab tests have shown that Li-Fi can hit speeds 100 times faster than current Wi-Fi systems.

Speed is not the only advantage of Li-Fi.

The system uses visible light communication between 400 and 800 terahertz to transmit messages in binary code.  

Visible light cannot pass through walls, making Li-Fi a much more secure system, and less susceptible to interference.

While the system seems promising, it won’t likely replace Wi-Fi entirely, at least not anytime soon.

Instead, researchers are now looking to retrofit devices with Li-Fi to use the two wireless systems together to optimize speed and security. 

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Podcast – The Muslim Colonization of the UN – Elite Hackers Say They Can Access iPhone Data

In this episode I discuss the expansion of Muslim prayer in the United Nations General Assembly Building and their refusal to use the designated meditation room set aside since 1957 for that express purpose. Some would say the UN is being colonized by Muslims.

In segment two I discuss the ongoing feud between our government and Apple computer over the FBI’s demand that Apple create a back door into the San Bernardino terrorist’s iPhone. The tech world is afraid this will set a precedent to allow abuse of citizens from the government, but one tech eccentric says he and his team will do the job for free. read more

New iPad – New iPhone

Apple is gearing up to reveal the latest version of its iPad Air  as well as new Apple Watch models at an event rumoured for March 15th.

The revamped tablet will likely be called iPad Air 3 and feature a 9.7-inch screen, much smaller than the firm’s latest 12.9-inch iPad Pro.

The Cupertino-based company is also expected to reveal a new 4-inch iPhone, dubbed the iPhone 5se at the event, according to 9to5Mac. read more

Ultimate Portable Power

The HeLi-on solar panel is designed to generate up to 3 W of power under standard ...

The HeLi-on solar panel is designed to generate up to 3 W of power under standard conditions (Credit: infinityPV)

Compact solar panels have been around for some time, but in a trade-off with portability many are too small to generate practical amounts of electricity over short periods. New designs, such as the Yolk Solar Paper, are capable of generating more electricity while maintaining a slim profile, but the HeLi-on further expands on the idea of portable power generation with a flexible solar cell that rolls out from a compact package to soak up more rays. read more

iPad Comparison

Shopping for an iPad? Gizmag compares the features and specs of the current models

Shopping for an iPad? Gizmag compares the features and specs of the current models

iPads may not be the must-have devices they once were, but they’re still the best standalone tablets – not to mention the most popular by a longshot. Let Gizmag help you decide which one you want, with our 2015 iPad Comparison.

We’re breaking down the following five iPads:

  • iPad Pro
  • iPad Air 2
  • iPad mini 4
  • iPad Air
  • iPad mini 2

Though you’ll still see the iPad mini 3 and other older models floating around at some retailers, these five are the only ones that Apple and its authorized third-party retailers will be selling for (presumably) the next year. read more

Is the Internet Killing Santa?

Years ago parents worried their children would learn the truth about Santa Claus from others, but now they have a new problem – the internet.

According to a recent poll from Hide My Ass!, 1 in 8 American parents said the internet was responsible for telling their children the truth about Saint Nick.

44% of parents blamed Google for ruining this Christmas story, as children searched for Santa and found pages explaining he is as real as an artificial Christmas tree. read more

I Saw You On Facebook – How Come I Wasn’t Invited?

by: the Common Constitutionalist

These days it seems most Americans have a Twitter or Facebook account – usually both. I don’t wish to offend but Twitter is just plain stupid. It’s merely a platform for most to “pop off” about something or someone. On occasion, it has its uses, like a breaking news event, but mostly its just nonsense. And it invariably gets people into a lot of trouble as it has no filter or send-time delay. Something idiotic pops into someone’s head, they type out their 140 characters and send. Within minutes they regret sending it. The only thing more absurd would be to have live Twitter feeds, where it is sent as you type.

Facebook does have its uses. Many, if not most businesses have some form of Facebook presence they find useful for communicating with customers, launching a new product, etc. Others, with personal accounts find it easier to share with family and friends. If one is smart and disciplined, Facebook is a great tool.

Then there are the not so smart and extremely undisciplined Facebook fanatics, who seem to live out their entire lives online. It’s an obsession to a growing number of people – mostly kids and younger adults, to stay in constant contact with their Facebook “friends.” And of course the more “friends” one has the cooler one must be. And everyone must be cool.

Facebook allows anyone to create an almost entirely false online persona – and more often than not that persona is one of 24/7 fun and frivolity. Rarely, if ever does anyone, particularly younger users, share anything but good news and fun on Facebook. When was the last time anyone shared the fact that they were just foreclosed on or lost their job or their health insurance due to Obamacare (had to get that in)? I would venture to say never. Why would they? The cool set doesn’t suffer those real life events. read more