zte nubia z5

| |

The Nubia Z5 runs on Android 4.1, and it's powered by a 1.5GHz quad-core processor and a 2,300mAh battery.

The handset comes in black or white, and has a 5-inch 1080p touch screen with a 1,920x1,080-pixel resolution and 443ppi. The display is manufactured by Sharp.
Its aluminum uni-body design measures 5.43-inches tall, 2.71-inches wide, and has a thin, 0.3-inch profile. And at 4.44 ounces, it's more lightweight than most standard 5-inch smartphones.

On the back there is a 13-megapixel camera with LED flash, and it includes features like panoramic and continuous shooting. On the front is a 2-megapixel camera.

Inspite of great features it also includes 2GB of memory, 32GB of storage space, Dolby sound technology, and free backup to a private cloud service.
The device costs about $554.26 (3,456 yuan) and is ZTE's flagship phone for the season.
Ahh ,i think that would make it a beast in the high end mobile market to win the hearts of the people.
wait friends thier's another great handset, the Grand S, another 5-inch, quad-core phone that ZTE is planning to unveil at CES 2013 for the U.S. market, I'll be pretty excited.

so get ready to test these beast's at the c.e.s 2013.
Read More

ipad 5 coming in march 2013

| |
iPad 5 rumored to launch in march 2013

finally  the rumors of the fifth-generation iPad (iPad 5) and iPad Mini 2 have surfaced in china. the leaks are to be believed, the iPad 5 will be thinner and lighter, and also feature a new design that’s similar to the iPad Mini . 
The iPad Mini 2 will keep the same 7.9-inch display, but make the jump to Retina resolution (2048×1536) and also move to the A6X SoC (currently in the iPad 4).
The new fifth-generation iPad will be 4mm shorter, 16mm narrower, and 2mm thinner than the fourth-gen iPad — in other words, it’ll look a lot like the iPad Mini, with its narrower portrait bezel. By decresing 2mm in depth, the iPad 5 would be just 7.4mm. 
This size reduction will reduce the weight of the iPad 5, but it might also impact battery life, unless Apple has a new technology hidden to give the users with more power in minimum possible size.
iPad Mini, front, back, side
The iPad Mini 2 is probably a more exciting proposition. If the rumors are correct, this diminutive iPad will feature a 2048×1536 (326 PPI) display and the bleeding-edge A6X SoC
This would mean that the iPad Mini 2 would have the same hardware spec as the iPad 4 — but half the weight and half the price. Suffice it to say, if the iPad Mini wasn’t exciting enough to divert attention away from the Nexus 7 and Kindle Fire, then this second generation certainly would be.  It will probably be released in March 2013 . 

 Apple’s last few product refreshes have focused more on gradual evolution (i.e. milking profits) than making huge technological leaps. At the moment there is a clear technological gap between the full-size iPad and the Mini — this rumored iPad Mini 2 would basically mean the iPad’s only advantage is a slightly larger screen. But who knows: If Apple feels threatened in the 7-inch tablet space, then an overpowered iPad Mini 2 would be a very good way of silencing the rival market products.
so keep your fingers crossed to get your hands on the new upcoming ipad 5.
Read More

HTC 8X vs Nokia Lumia 920 vs Samsung ATIV S

| |

HTC 8X vs Nokia Lumia 920 vs Samsung ATIV S

Nokia Lumia 920


Samsung ATIV S


Here comes the one table to rule them all ...right after the break.....

DESIGNHTC Windows Phone 8XNokia Lumia 920Samsung ATIV S
Dimensions5.21 x 2.61 x 0.40 (132.3 x 66.2 x 10.1 mm)5.13 x 2.79 x 0.42 (130.3 x 70.8 x 10.7 mm)5.40 x 2.78 x 0.34 (137.2 x 70.5 x 8.7 mm)
Weight4.59 oz (130 g)
the average is 4.2 oz (119 g)
6.53 oz (185 g)
the average is 4.2 oz (119 g)
4.76 oz (135 g)
the average is 4.2 oz (119 g)
ColorsBlack, Yellow, Blue, RedBlack, Yellow, Red, White, GrayBlack

Physical size4.30 inches4.5 inches4.8 inches
Resolution720 x 1280 pixels768 x 1280 pixels720 x 1280 pixels
Pixel density
342 ppi332 ppi306 ppi

Capacity1800 mAh2000 mAh2300 mAh
TypeLi - PolymerLi - Ion (with wireless charging)Li - Ion

System chip
Qualcomm Snapdragon S4 Plus MSM8960Qualcomm Snapdragon S4 Plus MSM8960Qualcomm Snapdragon S4 Plus MSM8960
Dual core, 1500 MHz, KraitDual core, 1500 MHz, KraitDual core, 1500 MHz, Krait
Graphics processorAdreno 225Adreno 225Adreno 225
System memory
1024 MB RAM (Dual-channel) / LPDDR2 (500 MHz)1024 MB RAM (Dual-channel) / LPDDR2 (500 MHz)1024 MB RAM (Dual-channel) / DDR2 (500 MHz)
Built-in storage16 GB32 GB16 GB
Storage expansion no nomicroSD, microSDHC, microSDXC

Camera8 megapixels, Immobile8.7 megapixels, Immobile8 megapixels, Immobile
Aperture sizeF2.0F2.0
Focal length (35mm equivalent)28mm26mm
FeaturesBack-illuminated sensor (BSI), Auto focus, Geo taggingBack-illuminated sensor (BSI), Auto focus, Touch to focus, Optical image stabilization, Exposure compensation, White balance presets, Digital zoom, Geo taggingAuto focus, Geo tagging
Camcorder1920x1080 (1080p HD)1920x1080 (1080p HD) (30 fps)1920x1080 (1080p HD)
Recording format
MPEG4, H.264
FeaturesVideo callingVideo calling, Optical image stabilizationVideo calling
Front-facing camera2 megapixels1.3 megapixels1.9 megapixels
Video capture  1920x1080 (1080p HD)1280x720 (720p HD) (30 fps) yes

800, 1900 MHz

GSM850, 900, 1800, 1900 MHz850, 900, 1800, 1900 MHz850, 900, 1800, 1900 MHz
UMTS800, 850, 900, 1700/2100, 1900, 2100 MHz850, 900, 1900, 2100 MHz850, 900, 1900, 2100 MHz
800 MHz, 900 MHz, 1800 MHz, 2100 MHz, 2600 MHz
DataLTE Cat3 Downlink 100 Mbit/s, LTE Cat3/4 Uplink 50 Mbit/s, LTE, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS, EDGE, GPRS, EV-DO Rev.ALTE Cat3 Downlink 100 Mbit/s, LTE Cat3/4 Uplink 50 Mbit/s, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s, UMTS, EDGE, GPRSHSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s,
Micro SIMYesYes
Global RoamingYesYesYes
GPS, A-GPS, GlonassGPS, A-GPS, S-GPS, Glonass, Cell ID, Wi-Fi positioningA-GPS, Glonas
NavigationTurn-by-turn navigationTurn-by-turn navigation, Voice navigationYes

Read More

blackberry z10 images leaked

| |
Blackberry z10

hi friends here comes the latest leaked images of the upcoming blackberry new smartphones.
scroll down to get a glimpse

Read More

3D Printer

| |
Read More


| |
Read More

Reservoirs can make local flooding worse, says study

| |
Researchers say that large man-made reservoirs can increase the intensity of rainfall and could affect flood defences.
Puclaro reservoir

The scientists found that rain patterns around bodies of water in Chile were much higher than in similar areas without them.
This "lake effect" could overwhelm flood defences which are often built without taking it into account.
The study has been accepted for publication in the journal Hydrology.
Stormy edge
Previous research in this field has focused on the impact of dams on local climates. There is evidence that standing bodies like reservoirs and lakes can alter rain patterns by increasing the amount of water that evaporates.

Some experts believe that you also get circulating air patterns in the atmosphere above the boundary between the water and the land and this can initiate thunderstorms and showers.
The impact can be significant. One study showed that extreme precipitation increased by 4% per year after dams were built.
In this latest work, researchers from the University of Talca, Chile, examined data from 50 rain gauges near reservoirs in different parts of the country.
Chile has a large variety of climates ranging from areas that get 0mm of annual rainfall to places that get more that 4,500mm. The scientists found that the most intense rainfall was measured at weather stations located near water bodies, especially in drier climates.
One of the authors, Dr Pablo Garcia-Chevesich from the University of Arizona told BBC News that the work had important implications for flood defences.
"If you install a water reservoir that will change things totally and that will lead to flooding," he said.
"Engineers get fired when there's flooding because they didn't do a good design, but in reality they did good work but someone else installed a water reservoir and the climate changed."
"The bigger the water body, the greater the effect."

Dr Garcia-Chevesich said this area of research was controversial because changing the design of flood defences was very expensive.
Dam boosters

Other scientists took a more measured view of the study.
Three gorges damThe huge Three Gorges dam in China is believed to affect weather patterns up to 100km away
Dr Faisal Hossain, from Tennessee Technological University, said the Chilean study was purely observational and that while the lake effect changed rainfall patterns, the jury was still out on whether it increased or decreased the amounts.
However, he said that he was hoping to bring the research to the attention of dam builders around the world.
"We have modified the weather patterns in such a way that we didn't anticipate before building these reservoirs, and yes in the global context it might have serious ramifications," he said.
Prof Richard Harding from the UK Centre for Ecology and Hydrology (CEH) said several studies had now pointed to the impact of reservoirs particularly in dry areas.
"The physics says that it will happen, but I'm struggling a little to know how big an impact it is, and quite whether it is strong enough to change the design of flood defences," he said.
Dr Harding suggested that the new study might provide ammunition for those who oppose the building of large-scale new reservoirs.
The authors argue that they want engineers and designers to take this new work into account in planning new flood barriers.
Read More

Fish attracted to same-sex flirts

| |

Female fish are attracted to males that "flirt" with other males, a study has found.
Scientists in Germany studied the behaviour of tropical fish Poecilia mexicana, known as Atlantic mollies.
The female fish are known to "mate copy" - preferring to mate with males they have seen interacting sexually with other fish.
Researchers found that females still took an interest in males when their flirtations were with the same sex.
Dr David Bierbach from the University of Frankfurt, Germany, led the research that is published in the Royal Society journal Biology Letters.
In the paper, researchers refer to homosexual behaviour in the animal kingdom as a "conundrum".
"Male homosexual behaviour can be found in most extant classes across the animal kingdom, but represents a Darwinian puzzle as same-sex mating should decrease male reproductive fitness," they wrote.
However, many animals that engage in homosexual behaviour have also been observed mating with the opposite sex, including penguins and bonobos.
Biologists have suggested that such actions could still reap genetic rewards, despite the perceived lack of reproduction, through knock-on effects.
Atlantic molly males "nip" near the genital openings of potential mates to signal their readiness to mate.
Scientists have suggested that such behaviour helps to demonstrate the quality of males, because their level of exertions can indicate overall health and virility.
Yet subordinate males are known to nip both females and other males.
Studies of the fish, which are found from Mexico to Guatemala, have shown that they can discern the sexes based on pheromones and visual cues, undermining any theories of misrecognition.
A male with two female Atlantic molliesFemales choose their mates in molly society
So, in order to understand the motivations behind this behaviour, the German scientists studied Atlantic mollies in their lab.
Using animated recordings, the team tested how "attractive" the fish found different examples.
While the females found a colourful male more attractive than a drab counterpart when swimming side by side, they reacted better to "less attractive" males once they had observed them nipping either males or females.
"We were quite surprised to find out that observed homosexual interactions had the same influence on females' preferences as heterosexual interactions," explained Dr Bierbach.
"The implications are that sexual activity per se is a trait used by females to evaluate males' quality and that our results could also be true in other species."
The scientists speculate that it could be a tactic employed by smaller, subordinate - and thus less attractive males - to win more female attention.
"Males can increase their attractiveness towards females by homosexual interactions, which in turn increase the likelihood of a male's future heterosexual interactions," 

Read More
| |
Microcontroller Basics

• A microcontroller is a small, low-cost computer-on-a-chip which usually
– An 8 or 16 bit microprocessor (CPU).
– A small amount of RAM.
– Programmable ROM and/or flash memory.
– Parallel and/or serial I/O.
– Timers and signal generators.
– Analog to Digital (A/D) and/or Digital to Analog (D/A) conversion.
• Often used to run dedicated code that controls one or more tasks in the
operation of a device or a system.
• Also called embedded controllers, because the microcontroller and support
circuits are often built into, or embedded in, the devices they control.
• Devices that utilize microcontrollers include car engines, consumer electronics
(VCRs, microwaves, cameras, pagers, cell phones .. ), computer peripherals
(keyboards, printers, modems.. ), test/measurement equipment (signal
generators, multimeters, oscilloscopes …).
• Microcontrollers usually must have low-power requirements (~. 05 - 1 W as
opposed to ~10 - 50 W for general purpose desktop CPUs) since many devices
they control are battery-operated.
example  :
Motorola’s 68HC11, 68HC12, AMD 29K,
Zilog’s Z8, Z80, Intel’s 8052, Microchip’s PIC
Low-power, embedded versions of desktop CPUs: e.g Intel’s 80486
Read More


| |
In order to escape from a metal being bombarded by
light, an electron requires an amount of energy qF
and emits an energy hn. The work function F, is the
minimum amount of energy needed to cause an
electron to leave the metal. It is a constant for each
metal. Tungsten: 4.5 eV.
           E = hv - qF  (must know)
Em = maximum energy of emitted electrons [J]
h = Planck's constant, 6.63×10-34 J-s
v= (nu) frequency [Hz]
q = electron charge 1.6022 × 10-19 [c]
qf = (phee) the work function of the metal [eV]
Read More

8085 instructions

| |
8085 instructions with examples

Read More

Have Venusian volcanoes been caught in the act?

| |

Have Venusian volcanoes been caught in the act?

Six years of observations by ESA's Venus Express have shown large changes in the sulphur dioxide content of the planet's atmosphere, and one intriguing possible explanation is volcanic eruptions.

Read More