Installing solar panels in your home can lower your environmental footprint and your monthly bills, but there are also some disadvantages you should know. Here are seven issues to consider.

1 Solar Panels Don’t Require Maintenance.Despite what solar panel makers may tell you, maintenance of the panels is not a problem once you have them installed. Solar panel manufacturers try to get people to lease solar panels, insisting that then the homeowner won’t have to worry about maintenance. Don’t let this get to you! The only thing you have to do is keep the panels clear of debris, by using a garden hose, out of direct sunlight, a few times a year.

2 SRECs and Tax Credits Aren’t Forever.Solar panel manufacturers will push you to invest in their product for many reasons, including the promise of SRECs (Solar Renewable Energy Credit) and tax credits. Every Megawatt-hour of electricity produced by your solar panels results in an SREC. In some states, SRECs are sold to utility companies, who then pay homeowners for each SREC they purchase. While such credits are a great incentive, they’re not a forever promise. For example, the Federal Solar Tax Credit will end for home solar in 2021.

3 The Effectiveness of Your Solar Panels Drops Each Year.It’s not a significant drop, but solar panel manufacturers aren’t going to be quick to disclose that efficiency of panels drops each year slightly. For panels manufactured after 2000, a 20-year-old panel will produce around 92% of its original power. 

4 You Should Be Careful of Your Warranty.It’s essential you do research on the solar panel manufacturers out there and hone in on which one has the best warranty. Most warranties last for 20 to 25 years, but for them to follow through, the manufacturer must still be in business. As always, choose a manufacturer with a solid reputation.

5 The Production of Solar Panels Creates Pollution.Solar is held up as an energy-saving, environmentally-friendly powerhouse. And while that’s undoubtedly true in many cases, the transportation and installation of solar energy systems are linked with the emission of greenhouse gases. Toxic materials and hazardous products have also been associated with the manufacturing process.

6 You Might Not Want Solar If You Have Low Electricity Costs.Solar is enticing for many reasons, most notably for financial and environmental sustainability. But if you don’t have substantial electricity costs, to begin with, you might want to reconsider investing in solar, since, if your electricity costs are low, your solar savings will be as well. Along with the size of your home and your usage, where you live also has an impact on your energy costs. For instance, in Louisiana, the cost of electricity is 27% lower than the national average.
​
7 You May Not Be a Good Candidate for Solar Energy. Along with living in a state with low electricity costs, there are other things to consider regarding solar energy. For instance, you might need to cut down trees that shade and beautify your home, and that can be very expensive. You may not even have the right roof to support solar panels structurally. These aren’t topics that solar panel companies are going to put right out there, but you should think of all of these things as you consider your options. Are you a good candidate for solar? Here’s what you need to know.

No doorman? No problem. Amazon introduced a new delivery solution for apartment complexes that promises to deliver both convenience and safety (alongside your actual package, of course). Meet Hub by Amazon, a container that allows for the storage of packages so that they’re not just strewn about a lobby, or worse yet, potentially stolen. The Hubs look just like traditional Amazon lockers, but instead of being installed in public spaces and businesses, they’re instead located in apartment and condominium complexes.

Best of all, the Hub isn’t just for Amazon deliveries – instead, if your mother wants to FedEx a care package to you while you live your big city dreams, the package can reside safely in Hub until you have finished with your 12-hour workday. Neither senders nor recipients have to make any specifications when it comes to getting their packages delivered – you still input your regular shipping address, and the Hub merely serves as a temporary stopover until you return home. When you’re ready to pick up, use a personalized pickup code to open the corresponding door and access your delivery.

“We’re always striving to make things easier for our customers. Building on Amazon’s expertise in locker solutions, the Hub addresses frustrations from property owners, carriers, and residents concerning package delivery,” Patrick Supanc, director, Amazon Worldwide Lockers and Pickup, said in a statement. “Now half a million residents in some of the premier properties in the country have access to the Hub, Amazon’s latest delivery solution. The Hub simplifies delivery for residents, offering quick and secure access to packages, day or night. For delivery providers, it offers a single, convenient location for package drop-off and gives property managers time and resources back to focus on other priorities.”

This could serve as a huge help to folks who live in buildings with tricky delivery schedules. You will no longer have to worry about staying home to wait on a package to arrive, nor will you have to remember to ask your building staff about that delivery that was supposed to come last week. Building managers will likely also appreciate the convenience offered by Hub – rather than requiring property staff to declutter a lobby or send packages to the proper apartment unit; everything can be centralized in Hub.
​
Already, Amazon says that several of the largest residential property owners in the U.S. have signed up for Hub and that more than 500,000 apartment dwellers already have access to the amenity. If you’re interested in petitioning your building to include one of these handy lockers, you can request Hub by Amazon at the newly dedicated homepage.

Since Microsoft and Amazon announced plans to integrate their respective personal digital assistantslast summer, there's been almost no official update on the status of the partnership.

It seems, however, like there's finally movement happening.

An April 27 update to the Cortana support page actually mentions Alexa. "Cortana and Alexa are still getting to know each other. Soon you'll be able to ask Alexa to buy things, add items to your shopping list, access your Alexa skills, and more," says the brief update on the page. Yes, "soon" is vague. But it's something.

Typing "Alexa" into the search box in Windows 10 (on the Fall Creators Update version, at least) yields a message saying "I'll be able to connect you to Alexa soon. Stay tuned!"

Last summer, Amazon and Microsoft announced that their respective personal assistants would be able to talk to one another, so customers could opt to use the assistant most suited to a particular task. Amazon and Microsoft officials said last year that they'd make Cortana-Alexa integration available before the end of calendar 2017. Since then, there's been no update on when this might arrive.

In early March 2018, Cortana team members told Windows Insiders that the Cortana-Alexa integration was in "internal self-hosting" at Microsoftat the moment. Microsoft is working to "make sure it's (the integration) a great experience," the team said, noting that bringing together the two different speech stacks is "non-trivial."

Recently, Cortana's new boss, Javier Soltero, admitted that "skills for the sake of skills won't fly." He told PC World that skills usage isn't "quite as deep as most people think it is." He also acknowledged Microsoft's in total catch-up mode on this front. (That's for sure, with Alexa at 40,000-plus third-party skillsat last count.)
Given Cortana is set to access Alexa skills via this integration partnership, maybe Cortana's skills shortage is less horrible than meets the eye.
​
Soltero also declined to say whether there are any other Cortana-powered speakers in the works. Currently, there's one from Harman-Kardon. I think speakers might not be where Microsoft is focusing; perhaps it's more about conferencing systems, microphones or other more business-centric peripherals.

If there's one downside to powerful computers, it's that they're too big.
Luckily, that's about to change. At least, if IBM has anything to say about it.

Earlier this month, IBM held its flagship conference, Think 2018, where the company unveiled what it claims is the world's smallest computer. They're not kidding: It's smaller than a grain of salt.

But don't let the size fool you: This little fella has the computing power of the x86 chip from 1990. Okay, so that's not great compared to what we have today but cut it some slack — you need a microscope to see it.

The computer will cost less than ten cents to manufacture, and will also pack "several hundred thousand transistors," according to the company. These will allow it to "monitor, analyze, communicate, and even act on data."

It even works with blockchain. Specifically, this computer will be a data source for blockchain applications. It's intended to help track the shipment of goods and detect theft, fraud, and non-compliance. It can also do basic AI tasks, such as sorting the data it's given.

According to IBM, this is only the beginning. "Within the next five years, cryptographic anchors — such as ink dots or tiny computers smaller than a grain of salt — will be embedded in everyday objects and devices," says IBM head of research Arvind Krishna. If he's correct, we'll see way more of these tiny systems in objects and devices in the years to come.
​
It's not clear yet when this thing will be released — IBM researchers are currently testing its first prototype. But one thing's for sure: The future is here. You just might need a microscope to see it.

You know that you need to replace your smoke detector’s batteries when they run out, but you might not realize that you should also replace the smoke detector itself every 10 years as the sensors wear down. Yes, even your fancy Nest detector falls under this guideline. 

This might sound like a ploy to get you to shell out for a new alarm every decade, but you’re better off doing it for several reasons:

•  Peace of mind: You’ll know that your home has a working system to alert you in case of fire. You should make sure there’s alarms on each level of your home as well as one within earshot of your bed (many fires start when you’re asleep). Ideally, they’re interlinked so that when one goes off, they all go off so you get as early a warning as possible.

•  Limiting effects to your insurance: If you have a homeowner’s or rental insurance policy, you likely have a section on protections your home must have to qualify for the policy. This often includes having working, non-expired smoke detectors. Even if your policy doesn’t have a section on this, alerting your agent that you have non-expired alarms can sometimes lower your rate or work in your favor during insurance investigations after a fire.

•  Following other regulations: If you’re a landlord, you’re likely required to make sure your rental properties all have working, non-expired smoke detectors.
Consumer Reports points out that you can test your smoke alarm’s sensors using a test spray that simulates smoke, but that the best thing is to just replace an alarm that has passed its expiration date. Check for the date by looking for the manufacture date on the underside of your alarm (the part that typically faces the ceiling). Add ten years to that date and you have your expiration date. You might want to write this date on a piece of painter’s tape or on the outside of the alarm so it’s easy for you to see when to pick up a new one.

A few years ago, researchers at MIT developed a new technology that could detect movement by measuring changes to wireless signals. This device, called Radio Frequency (RF) Capture, could in effect "see through walls" by detecting ripples in Wi-Fi or other wireless signals anywhere in a house. Now, the company Cognitive Systems has harnessed this technology to build a new kind of home security system called Aura. Instead of using cameras or motion sensors, Aura can detect home intruders by looking at how movement affects wireless signal.

At its most basic, Aura is a base station and a companion unit placed on opposite sides of a house. It can tell you, via a smartphone app, if there is movement in your house and how much. It can't, however, tell you what is making that movement, unless it's a person who has already registered their phone with the device. Aura can also automatically tell when you leave your home by detecting that you phone is no longer present. Then, it automatically arms itself though you can do that manually as well. When movement is detected, Aura will send an alert to your phone or set off an alarm.

Aura is programmed to recognize the differences in movements made by a pet or a human, or ambient movement like a fan blowing a curtain. Humans in a space change the wireless spectrum much more dramatically than other sources of movement.

A device like Aura may appeal to some people who are concerned about security but don't like the idea of pointing a camera at your bedroom. Aura, on the other hand, doesn't record or even "see" what is happening in your house—it only detects movement.

"There's no sense of privacy invasion," Cognitive Systems CEO Hugh Hind ssaid.

To make Aura, Cognitive Systems built a new kind of microchip, one that can detect a broad spectrum of frequencies, from 80 MHz to 4 Ghz. This novel technology could be very useful for manufacturers of other gadgets, and it's possible that Cognitive Systems' chip will outdo the security system it powers.

But that success has yet to be determined, since Aura has just started shipping to customers. But it's not hard to imagine that a device that can see movement through solid walls , all without using a camera, could change the landscape of surveillance and security.
​
Aura is available at the company’s website at $499/each.

We are all experiencing the increasingly invasive robocall phenomenon. Sometimes robocallers disguise themselves with allegedly valid caller IDs and other times they don’t. Whatever they do, it’s a constant plague on our privacy.

“Blocking robocalls on a home landline is like trying to stop a star athlete,” says Bob Bentz, president of Advanced Telecom Services and adjunct professor of communications at the University of Denver. “Most coaches will say they are just trying to control the superstar because they know they can't truly stop him or her completely. There is no sure-fire way to stop unwanted calls completely, so the best thing to do is simply try to limit them.”

Don’t Answer. As rudimentary as it seems, one the most effective deterrents is to screen your calls. “If no one ever picked up the phone when it rang, robocalls would stop,” says Alex Quilici, CEO of YouMail, a visual voicemail and robocall blocking service. “If I’m going to scam you to buy a fake cruise or install fake virus software, I need you to answer the phone so that I can pitch you.”

Quilici said he turned his landline ringer off altogether, and all calls go through an answering machine with caller ID. If the caller doesn’t leave a message, he doesn’t worry about it. If they do, he can still grab the phone while the caller is talking, or call him or her back. “These aren’t perfect solutions, it’s like bringing back the 80’s and 90’s, but it goes a long way to solving the problem.” He also told me that he convinced his mom to do this, too (and it’s working).

Call Blocking Boxes. Then there are "robocall blocker" boxes. I have a friend who swears by the $100 CPR V5000 Call Blocker he picked up for his aging father. He said his parent's phone went from ringing more than ten times a day with political polls, solar panel and security system sales, to remaining blissfully quiet unless a “whitelisted” number comes through. The boxes range anywhere from $30-$150 dollars.

The blocking box does contribute to one concern. One of the biggest reasons people keep landlines is for emergencies. The boxes “could present problems in emergency situations or when it comes to "legitimate" robocalls (school snow days, product recalls, etc.),” says Tim Prugar, who sits on the Communication Fraud Control Association’s consumer education committee.

Free Solutions. An app called Nomorobo is one of the top recommendations for stopping robocalls on your smartphone, and it's just as good for blocking bad callers on your home phone. On mobile, it’s a paid subscription, but it's free for landlines. It automatically blocks almost 500,000 confirmed robocallers and doesn't use ads or any other goofy tricks to get money out of you — it's just plain free.

The catch is that it only works with VoIP phone service, so if you get your phone through an internet or cable provider like Charter, AT&T U-Verse, Verizon Fios, Comcast Xfinity, Vonage, or several others, you're good to go. It does not work, however, on traditional "analog copper" phone lines. If you’re not sure what you have, call your phone company.

Another freebie helper for ridding robocalls is anonymous call rejection. To enable it, just pick up your phone and press "*77.” You should hear three short beeps to let you know it's activated, and then you can hang up. After that, all calls that come in as Anonymous, Private (a favorite of robocallers), or Blocked won’t get through. You can turn the feature off whenever you want by pressing "*87.” Virtually every phone company has this feature built right into your service, and it’s just sitting there waiting for you.

None of these solutions are perfect because it turns out, blocking robocalls on home phones is much more complicated than blocking them on smartphones.

The best way to limit all these unwanted calls is to follow a few simple guidelines:

• Never interact with a robocall.
• Don’t press a button, wait for an agent, or even speak.
• Anything you do that shows your number is real and active will just make you an even bigger target for promotions, actual or fake, in the future. Seriously, just hang up! (Or better yet, don’t answer at all.)

It’s a super complicated problem, and right now there’s just no one solution. But with the right tools and a bit of common sense, you can avoid scams and hurt the annoying callers right where it hurts the most: Their ability to rob us blind.

A new kind of attack is targeting unsecured Internet of Things devices by scrambling their software and rendering them useless.

Security firm Radware first spotted the newly-found "BrickerBot" malware last month after it started hitting its own devices, logging hundreds of infection attempts over a few days. When the malware connects to a device with their default usernames and passwords – often easily found on the internet – the malware corrupts the device's storage, leading to a state of permanent denial-of-service (PDoS) attack, known as "bricking."

In other words, this attack, "damages a system so badly that it requires replacement or reinstallation of hardware," said Radware.

Like the Mirai botnet, most famous for bringing down wide swathes of the US internet last year in a massive distributed denial-of-service (DDoS) attack, the BrickerBot also uses "the same exploit vector" by brute-forcing telnet accounts with lists of available usernames and passwords.

The researchers say that the attackers also have an affinity for targeting devices on Ubiquiti networks. Once inside, the malware runs a sequence of commands, which "try to remove the default gateway and disable TCP timestamps as well as limiting the max number of kernel threads to one," which would scramble the device's memory.
​
"Unfortunately, even after performing the factory reset, the camera device was not recovered and hence it was effectively bricked," said Radware.

Presbyopia, or farsightedness caused by the loss of elasticity in your eyes as you age, affects 83% of adults over the age of 45 in North America, and nearly everyone is forced to wear glasses by the time they hit 50. Combined with an increasing concern for the long-term effects of staring at a screen all day, and the future starts to look blurry. But studies show that smartphone apps might retrain your brain to improve your sight.
The New York Times spent some time with GlassesOff, the only app backed by medical studies that claim to improve eyesight. Austin Frakt, the writer of the Times report, used the app for a month. The app told him his ability to read text improved by about 33% by the time testing was finished.

GlassesOff uses perceptual learning to improve your vision by training your eyes to view specific images. It deploys “Gober” patches, or black, white, and, gray images to stimulate the brain so it can learn and recognize patterns. After firing up the app, users will see an extremely low contrast image with circles in the background. A pattern then flashes on the screen for a matter of milliseconds, and a second pattern flashes soon after. Users must then decide which image appeared more focused.

That may sound like those fun tests your eye doctor gives you during a routine checkup, but this is a lot more punishing. To be effective, users must use the app hundreds of times on a daily basis, and as Frakt points out, “Weeks into it, I began to dread the monotonous labor.”

The science behind the application isn’t much different than practicing how to hit a baseball in a batting cage. The ball shoots out of the machine, your eyes catch a glimpse of white, and your brain reacts accordingly. The more you do it, the slower that ball appears, and the better equipped you are to try a faster speed.

That brings us to the surprising science behind this app—it doesn’t help your eyes, it trains your brain.  Your eyes pick up data of an image and send it to your brain where it unscrambles into recognizable objects. Our brains only have around 250 milliseconds to process words read at a normal speed. If the brain is unable to recognize a word in that time, it won’t be able to understand it. By flashing difficult-to-see images, you can speed up the time it takes for your brain to process that data and improve different parts of your vision. Some studies agree that the technique can “significantly improve visual performance for older adults.”

Others are not as hopeful.

“Human vision quality is determined by the physical eye and the way the brain reads the information that the eye captures,” ophthalmologist Michelle Rhee told CBS News. “To think that we can reverse presbyopia or reverse having to wear glasses for myopia and any of those different prescriptions solely on neuroplasticity is just not accurate.”

Frakt says his vision is equivalent to someone ten years younger than him after testing GlassesOff for just a few months.
​
But that alleged benefit doesn’t come cheap. The app costs $25 for three months, which is enough time to get through the main program. It costs $60 a year for “maintenance training” after that. But those charges pay for themselves in convenience and price if they can keep you from needing reading glasses sometime down the road.

Both Google and Amazon are allegedly considering adding a voice calling feature to their industry leading smart speakers, Google Home and Amazon Echo. That move could spell further doom for the ailing landline home phone market.

Rumors from "people familiar with the matter" claim that both devices have software in place to support Voice Over Internet Protocol (VoIP) calls. If put into place, the Google Assistant and Amazon Alexa artificial intelligence assistants would be able to recognize simple voice commands similar to those used on smartphones to ring contacts and answer incoming calls.

According to the Wall Street Journal's anonymous sources, the feature could be arriving as soon as this year in selected, unconfirmed regions. These sources also indicate that Amazon is considering assigning a unique phone number to the Echo (or Echo Dot) to enable calls, or syncing the user's mobile number with the smart speaker.

With the technology reportedly already in place, the delay in its implementation has been blamed on concerns "around privacy, telecom regulations and emergency services." The latter appears to be the biggest sticking point, with calling emergency services in the US a less clear cut scenario than the UK.

The reports also note that both Google's parent company Alphabet and Amazon are mindful of the fact that not everyone is comfortable having phone conversations via a speaker, particularly as both the Echo and Home record audio for voice activation purposes.

Although Amazon would apparently only collect call metadata rather than actual audio clips recorded during calls, WSJ's Google sources did not specify Home's recording capabilities, though they would likely be similar to its Google Voice app for Android which only stores metadata, voicemails and any user-specified calls.

So, given all the rumors, could this lead to the end of the landline?

With Google Home and Amazon Echo already capable of controlling music libraries, heating systems, lighting and ordering anything from an Uber taxi to a takeaway pizza, the addition of voice calling is a logical next step for both platforms. 
​
So casual chats using Internet of Things-friendly smart speakers with AI assistants could be the future of calling friends and family from home. Only time will tell.