Tag Archives: gadgets

The Pros and Cons of using Drones

With the current days the use of these unmanned devices is everywhere and they can be used for everything. Invention of drones has really led to improvement in life in several ways. They have no human pilot boarded, and instead they are either controlled by a person on the ground or by a computerized program.

These slyness planes are becoming more familiar, not just for battle and military functions, but also for everything from wildlife and atmospheric research to disaster relief sports photography, plantation surveillance. These aircrafts are becoming the seeing and hearing aids of scientist experts by checking the ground for archaeological sites, signs of poaching and crop destruction, and even checking inside hurricanes to study the wild storms.

Contrasting to normal aircraft, drones are often liked for functions that are too risky for human’s intervention like wars and disasters. The drones mainly came mostly in military functions, although their use is becoming wider. In certain countries in Africa like Malawi and Zimbabwe drones are being to transport medicine to remote villages in the countries where there is poor infrastructure than can’t be used by either vehicles or even aircrafts so the best method is to use drones. In Rwanda drones are used to transport emergency blood supplies.

Drones are grouped into six functional divisions:

Object and attraction – They provide floor and aerial ordinance that activate an attack

Surveillance – providing war field knowledge

Fight – providing invasion for high-risk missions

Logistics – transportation of cargo

Research and development – promote research in drones

Civil and commercial functions – used in agriculture, aerial photography, data collection and even for leisure

Pros of using drones

They save lives

Operate on low costs compared to planes

Presence of low risks

Can remain airborne for long hours compared to aircrafts

They are more harmful to enemies as compared to normal planes

Easy to deploy

Good for gathering information

Cons of drones

They are considered as an invasion of privacy since that they are continuously surveilling hence privacy of a place may be leaked

Drones may make people to become deaden to war and killing in general.

May cause injuries and even loss of life

Loss of career by pilots

Cautions of flying drones

Flying drones comes with cautions to be observed like:

•Drones are suitable for persons who aren’t less than fourteen years old, who have skills of flying drones before because they may cause accidents and even death

•When using drones they should not be used under extreme weather conditions likestrong wind, rainy, fog weather among others

•When flying drones is advisable to select a wide open & legal space to fly so as to avoid obstruction, crush or persecution

•When flying drones, is advisable stay-away from high speed rotating components like propeller, brushless motor so as to avoid crush and damage of drones

•When using drones is advisable not to fly in the areas having high voltage lines, communication-base stations/towers, only to mention but just a few, so as to avoid the interference on remote control.

•Is advisable not to fly in prohibited areas like military bases, war spaces to avoid persecution and imprisonment
The future of drones

In the future drones will take from other drones. With the changing technology advanced drones will be invented for advanced functions like waiter drones to serve people in hotels, ambulance drones, drone sporting, and planting crops drones among others

Nokia 5800 Navigation Edition

Ever since the invent of the telephone by Alexander Graham Bell to the invention and evolution of the cellular phone gadgets of all types, especially the ones used for communication have been of particular significance. The phone changed and made a lot of things easy for us. It was not just used as a mode of communication but more importantly became a major source of being in touch with loved ones who were far away. With the development of technology, there was the advent of the cellular phones, and this meant being able to be in touch with the loved ones even while one was on the move.

We have always been fans of Nokia products; they make a large variety of handsets from basic entry level ones to high-end smartphones. They rarely disappoint in quality and hence we pounced on the Nokia 5800 when the manufacture

GPS, once a luxury to have on a mobile phone has now become a necessity. So naturally, more and more manufacturers are providing it, and Nokia is the latest player to join the bandwagon. We have done check up for GPS based smartphones earlier, and we saw that the maps occupy lots of space on the memory card and hence you don’t get to use the full capacity of the card for storing music or movies.

Previously, you had to pay a fee for subscribing to location-based service like TeleNav. Google later announced that Google Maps Navigation would be providing these for free and now Nokia is also doing the same.

we had done Nexus One which is an amazing device from the stables of Google. Nokia 5800 cannot match the prowess of Nexus One because the latter is altogether new technology and the Nokia product is just a GPS enabled edition of the Xpress Music 5800 device.

When Nokia gave us the 5800 Navigation Edition for phone testing, they told us that the handset would be available in the market for $299. That is a good price, considering the phone is unlocked. Usually, unlocked phones come with astronomical price tags slapped on them. What sweetens the deal is the fact that you get a solid phone and a great multimedia player as well.

Other than the GPS features, the Nokia 5800 is essentially the same. It has a 3.2-inch touchscreen which gives a resolution of 640×360 pixels. Our only complaint is that the touchscreen isn’t capacitive like iPhone, so you will have to use a stylus for precise touch.

Nokia never disappoints in music quality and neither did the 5800. The handset is accompanied by 3.5 mm headphone jack that lets you plug in any standard headphones. Music heard over the external speakers also sound good.

The 3.2 MP camera come with a built-in flash that lets you take good photos. The camera can also record videos in its camcorder mode, and you get to choose between five quality modes. For storing your photos, videos, and music, Nokia 5800 supports up to 8 GB of memory cards and also has 81 MB of internal memory.

At GSM, the cell phones was finally tested the phone for call quality and we didn’t have anything to complain about. The voices were natural; we didn’t experience any dropped calls, and our friends could hear us clearly on the phone.