UMi LONDON Rugged Phone 3G Smartphone Review

UMi LONDON Rugged Phone 3G Smartphone Review

Android 6.0 5.0 inch HD Screen MTK6580 Quad Core 1.3GHz 1GB RAM 8GB ROM Gravity Sensor GPS Bluetooth 4.0
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Description
Main Features:
UMi LONDON Rugged Phone Android 6.0 5.0 inch HD 3G Smartphone MTK6580 Quad Core 1.3GHz 1GB RAM 8GB ROM Gravity Sensor
Display: 5.0 inch HD 1280 x 720 pixels HD Screen
CPU: MTK6580 Quad Core 1.3GHz
GPU: Mali-400 MP
System: Android 6.0
RAM + ROM: 1GB RAM + 8GB ROM. TF card up to 32GB
Cameras: Front 2.0MP + Rear 8.0MP with LED flashlight 
Sensors: G- Sensor, P- Sensor, L-Sensor, Accelerometer
Bluetooth: 4.0
SIM Card: Dual SIM dual standby. (Nano SIM + Micro SIM)
Networks: 
2G: GSM 850/900/1800/1900MHz
3G: WCDMA 900/2100MHz
Specifications

Basic Information	Brand: UMI Type: 3G Smartphone OS: Android 6.0 Service Provide: Unlocked Language: English, French, Spanish, Russian, German, Italian, Portuguese, supports multi-language SIM Card Slot: Dual SIM SIM Card Type: Micro SIM Card,Nano SIM Card
Hardware	CPU: MTK6580 Cores: 1.3GHz,Quad Core GPU: Mali-400 MP RAM: 1GB RAM ROM: 8GB External Memory: TF card up to 32GB (not included)
Network	Wireless Connectivity: 3G,Bluetooth 4.0,GPS,GSM,WiFi WIFI: 802.11b/g/n wireless internet Network type: GSM+WCDMA 2G: GSM 850/900/1800/1900MHz 3G: WCDMA 900/2100MHz
Display	Screen type: Capacitive,IPS Screen size: 5.0 inch Screen resolution: 1280 x 720 (HD 720)
Camera	Camera type: Dual cameras (one front one back) Back camera: with flash light Back-camera: 8.0MP Front camera: 2.0MP Video recording: Yes Flashlight: Yes
Media Formats	Picture format: BMP,GIF,JPEG,PNG Music format: AAC,MP3,WAV Video format: 1080P,MP4 E-book format: TXT Games: Android APK
Other Features	I/O Interface: 3.5mm Audio Out Port,Micro USB Slot Sensor: Accelerometer,Ambient Light Sensor,Gravity Sensor,Proximity Sensor FM radio: Yes OTG : Yes Sound Recorder: Yes Additional Features: 3G,Alarm,Bluetooth,Browser,Calculator,Calendar,FM,GPS,MP3,Off-screen gesture,OTG,Sound Recorder,Wi-Fi
Battery	Battery Capacity (mAh): 2050mAh
Package Contents	Cell Phone: 1 Battery: 1 Power Adapter: 1 USB Cable: 1 English Manual : 1
Dimensions and Weight	Product size: 11.49 x 7.16 x 0.86 cm / 4.52 x 2.82 x 0.34 inches Package size: 17.50 x 9.70 x 5.00 cm / 6.89 x 3.82 x 1.97 inches Product weight: 0.160 kg Package weight: 0.390 kg

This Week in Chemistry – Mars’ Past Oxygen Atmosphere, and Hydrogen Fuel from Desalination

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This Week in Chemistry – Mars’ Past Oxygen Atmosphere, and Hydrogen Fuel from Desalination

Here’s the weekly summary of both new chemistry research and studies that have been in the news. This week features news on evidence for a past oxygen atmosphere on Mars, a new theoretical explanation for the density difference of water and ice, and more. As always, links to further articles and original research papers are provided below, as well as further studies of interest not included in the graphic.

Note: links to studies behind a journal paywall are indicated with (£). Studies without this symbol are open access, and can be accessed and read for free. 

Featured Stories

Manganese oxides on Mars hint at previous atmospheric oxygen: [Article] [Study]

Model hints at prebiotic chemistry on Saturn’s moon Titan: [Article] [Study (£)]

Using liquid metal wheels to drive miniature vehicles: [Article] [Study (£)]

New theoretical explanations for water and ice density difference: [Article] [Study]

Solar-powered desalination produces hydrogen fuel: [Article] [Study (£)]

Other Stories This Week

Formation of the browning pigment melanin decoded: [Article] [Study (£)]

Catalyst creates peroxide reagents from thin air: [Article] [Study (£)]

Encapsulated sunscreen sticks to the skin without being absorbed: [Article] [Study (£)]

Nanoparticles in dusty streets contribute to air pollution: [Article] [Study]

Prodding a molecule switches between its tautomers: [Article] [Study]

Engineered bacteria produce silver nanoparticles: [Article] [Study (£)]

WATCH: Why the speed of light is NOT about light

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WATCH: Why the speed of light is NOT about light

More like speed of causality.

The Universe is pretty nuts when you think about it. All that matter zooming around space, colliding into each other and aggregating into greater things like planets and asteroids, unfathomable black holes swallowing everything at the centre of a galaxy, while star systems are hurtling towards the edges at speeds we can't explain.

And yet, in all this hustle and bustle, for whatever reason, everything in the Universe appears to keeps to a very strict speed limit: 299,792 km/sec (186,282 mps).

Why this speed in particular? That's the absolute fastest that a light particle - or photon - can travel in a vacuum. That's the speed of light, and everything in the Universe must adhere to it, according to our current understanding of the laws of physics.

And yet, that statement isn't exactly correct, as the episode of Space Time above explains, because it's backwards.

The Universe DNGAF about your rules, or your light. The speed limit that everything in the Universe must adhere to - the universal constant - is about something much deeper. As Matt explains, the speed of light should really be called the speed of causality.

You can think of causality in relation to a concept known as the spacetime interval, which states that causal connections are the only order of events that all observers, from wherever they're positioned in the Universe, can agree on.

But why does causality have to have a speed limit, and why does light get to determine that limit?

To understand that, we need to look at two things that have been crucial to our current understanding of the laws of physics: Galileo's principle of relativity - which was the precursor to Einstein's theory of relativity - and Maxwell's equations.

Set out by physicist and mathematician James Clerk Maxwell, Maxwell's equations would form the foundation of classical electrodynamics, and cast doubt on the robustness of Galilean relativity.

Now here's where the video gets really good, because in order to reconcile what's going on with relativity and Maxwell's equations, we get to talk about a pony on roller skates, and an electric monkey on a skateboard.

When all that madness is said and done (our new favourite phrase is "total monkey speed"), we come to the conclusion that electromagnetic forces hold clues about the fundamental interplay between space, time, and velocity, says Matt, and this cannot hold if your maths relies on an infinite speed of light.

But how does all that fit together, and why do you need a specific limit of light speed to hold it all in place? I'll let the episode of Space Time above explain all that, and get ready to feel very confused, and then very smart by the end of it, because this stuff is complicated, but incredibly awesome. Science is always worth the brain-hurt.

And for more on causality, check out the video below:

Neutrinos could be the reason why antimatter hasn't blown up the Universe

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Neutrinos could be the reason why antimatter hasn't blown up the Universe

Thanks, neutrinos!

Researchers studying the behaviour of electrically neutral particles called neutrinos might have finally found a solution to a mystery that has been confounding physicists for decades.

New results from the T2K experiment in Japan could explain why an equal amount of matter and antimatter did not form at the birth of the Universe, which has led to the stark imbalance we can still observe today.

According to the rules set by the standard model of particle physics and Einstein's theory of general relativity, the Big Bang should have produced equal amounts of both matter and antimatter.

But because matter and antimatter annihilate each other when they meet, leaving nothing but energy behind, this couldn't have actually happened, because equal matter and antimatter means no Universe. 

Physicists refer to the imbalance between matter and antimatter in the observable Universe as baryon asymmetry.

This is where neutrinos come in. Also known as 'ghost particles', neutrinos are incredibly hard to detect, because they barely interact with the rest of the Universe. This means that experiments designed to measure them require incredibly sensitive instruments and a whole lot of observation time.

In addition to the neutrino, there's also its antimatter counterpart – the antineutrino – and they both come in three types: the electron, the muon, and the tau.

In 2013, scientists involved with the T2K project in Japan found the first evidenceof neutrinos being able to change – or 'oscillate' – between these forms.

The T2K experiment involves more than 500 scientists from across the world and uses two sites some 300 km (186 miles) apart for its experimental country-wide labs: the Japan Proton Accelerator Research Centre (J-Parc) and the Super-Kamiokande observatory (pictured above).

Now, the latest results from T2K's continuing experiments are in, and they show evidence of 32 muon neutrinos becoming electron neutrinos, while just 4 muon neutrinos turned into their anti-electron counterparts.

The team behind the experiment don't fully understand what's going on here yet, but that's the kind of imbalance between matter and antimatter that scientists have been looking for all this time, and could offer evidence of a violation of what’s known as charge-parity (CP) symmetry.

As Lisa Grossman from New Scientist explains, CP symmetry is the notion that physics would remain essentially unchanged if we replaced all particles with their respective antiparticles.

This implies that there should have been the same amount of matter and antimatter in the early Universe – which we know there wasn’t, since we exist. So anything that shows a deviation from CP symmetry, like the neutrinos imbalance being observed by the T2K project, is important in helping to explain the discrepancy.

"We know in order to create more matter than antimatter in the Universe, you need a process that violates CP symmetry," physicist Patricia Vahle from the US-based NOvA Neutrino Experiment, who isn’t involved with T2K, told Grossman.

Before we get too excited, it's worth noting that the T2K tests so far have only reached the second sigma level out of six.

These levels are used to verify and confirm discoveries in particle physics, and findings aren't considered confirmed until they reach level five, so it's early days yet. But the initial data suggests that this new study fits in well with the discoveries made three years ago.

Further antineutrino experiments are scheduled for next year, and the teams involved are planning to gather more data to help confirm their hypothesis.

Even then we won't know exactly how neutrinos and antineutrinos explain the baryon asymmetry problem, but we will know where to focus our investigations.

Radiation levels in the Pacific Ocean are almost back to pre-Fukushima levels

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Radiation levels in the Pacific Ocean are almost back to pre-Fukushima levels

Yay?

The wounds left by the 2011 earthquake and subsequent tsunami off the coast of Japan are taking a long time to heal, but there's some positive news from scientists measuring radiation levels in the Pacific Ocean.

After more than five years, those levels are almost back down to normal, even as radioactive material continues to leak out of the Fukushima Daiichi nuclear power plant that was damaged in the tsunami.

Scientists from Edith Cowan University (ECU) in Australia led an international team in a major review of radiation levels right across the Pacific, to check the status of the water five years after the disaster. According to the researchers, there's good news and bad news.

"Radiation levels across the ocean are likely to return to levels associated with background nuclear weapon testing over the next four to five years," said review co-author Pere Masqué from ECU. "However, the seafloor and harbour near the Fukushima plant are still highly contaminated, and monitoring of radioactivity levels and sea life in that area must continue."

To give some context, back in 2011, around half the fish samples taken from coastal waters off Fukushima were found to contain unsafe levels of radioactive material. By last year, that number had dropped to just 1 percent.

The 2011 event resulted in the largest ever leak of radioactive material into the world's oceans, and the incident is one of only two to qualify as a level 7 event on the International Nuclear Event Scale (along with Chernobyl). As such, the scale of the terrible episode makes the news that the Pacific Ocean is now recovering all the more incredible. 

To check radioactivity levels in the Pacific, the researchers incorporated 20 individual studies, analysing levels of radioactive caesium detected in the ocean from Japan’s coast across to North America.

Caesium is a particularly useful chemical element for tracking the dispersal of radiation, because it's a byproduct of nuclear power and is highly soluble in water.

Credit: Annual Review of Marine Science

Despite the promising drop in radioactivity, the researchers are calling for more support to be put behind monitoring efforts, as dangerous materials continue to leak out of the Fukushima plant.

Efforts to curb that leakage are also ongoing: an underground frozen wall is one of the ways Japanese authorities are looking to minimise the amount of radioactive material that seeps out in the future, but it's going to take an estimated 30 to 40 years before the plant is fully decommissioned.

"Although one cannot expect a total return of the communities to their status [as it was] before March 11, 2011," write the scientists in their final report, "it is hoped that, with time, a new normality will return to the affected areas and that an improved understanding of the fate and impacts of radionuclides discharged to the oceans will help to contribute to that recovery."

The findings have been published in the Annual Review of Marine Science.

New evidence suggests our understanding of how Earth's mantle moves is wrong

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New evidence suggests our understanding of how Earth's mantle moves is wrong

Science gonna science.

You might think geologists have a pretty good idea about the inner workings of the Earth's mantle - that hot, rocky region between the crust and the core thatmakes up 84 percent of the total volume of our planet.

But a new study suggests that the mantle's movement could be affected by factors we haven't even yet considered yet, and that could completely change our thinking about earthquakes, volcanoes, and other plate-shifting events.

The new research, conducted by a team from the University of Columbia, focusses on two layers: the lithosphere, which holds the crust, the upper mantle, and the tectonic plates that slowly slide across Earth's surface; and the deeperasthenosphere, a hotter and more viscous part of the mantle believed to help drive the movement of the plates above.

Until now, it was thought that major pulls and pushes in tectonic plates - caused by rising and sinking sections of the lithosphere - were what triggered the majority of the movement underneath in the asthenosphere. Now it appears that smaller, more independent factors could have an influence, too.

The researchers attached an array of seismometers on the floor of the Pacific Ocean to get a closer look at mantle convection and plate tectonics based on the vibrations detected from earthquakes.

In particular, they looked at patterns created in crystals called olivine - patterns that are dictated by the flow of Earth's mantle, and which can be deciphered from the speed of seismic waves.

Surprisingly, the olivine patterns didn't match with the movements of tectonic plates, and were apparently not hugely affected by those major pulls and pushes in the lithosphere above. The main flow of movement seemed to be happening 250 kilometres (155 miles) down.

Jose F. Vigil/USGS

The team thinks that pressure caused by different temperatures inside the mantle could be causing small-scale convection. Essentially, these small-scale processes could be more significant than the plate-driven deformation higher up in the mantle.

"Our data suggests that there are two other processes in the mantle that are stronger [than the influence of moving plates]," explains study co-author and geophysicist, James Gaherty.

"One, the asthenosphere is clearly flowing on its own, but it's deeper and smaller scale; and, two, seafloor spreading at the ridge produces a very strong lithospheric fabric that cannot be ignored."

It's still not clear exactly how the asthenosphere works and in which directions its materials are flowing, but there's now a solid foundation for future study. The team's work has been published in Nature.

And that's not the only recent discovery that sheds new light on what's going on below Earth's surface. Last month, researchers from Arizona State University found that two large 'blobs' sitting inside the planet - each the size of a continent and about 2,900 kilometres (1,800 miles) down - are made of a different material than the rest of the mantle.

"While the origin and composition of the blobs are yet unknown, we suspect they hold important clues as to how Earth was formed and how it works today,"explained one of the team, Edward Garnero. It's possible that these previously undetected blobs also have a role to play in the movements of the mantle being analysed in the first study we mentioned.

Again, the speeds of seismic waves were used to determine that these blobs are made up of different stuff - whatever it turns out to be - than the materials around them. These new findings have been published in Nature Geoscience.

Here's one way astronauts keep entertained in space

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Here's one way astronauts keep entertained in space

I'll bring the popcorn.

One could argue that everything is neater in space. Mundane activities like eating, sleeping, and just looking out the window become exponentially more awesome.

Even a Friday night spent relaxing and watching a movie becomes just a little bit cooler when you’re doing it while orbiting Earth at 17,500 miles per hour (28,163 km/h).

Last year, astronauts installed an HD projector and a 65-inch screen in the International Space Station (ISS). The new set-up was a huge step up from the small screens of the devices astronauts previously had to watch movies on.

"Its home theater set-up puts most of our terrestrial TVs to shame," Wiredwrites.

The set-up isn’t exclusively used for movie-viewing - astronauts also use it to make calls to their families back home or to touch base with Mission Control.

Knowledge of the ISS’ new entertainment system surfaced back down on Earth when station commander Scott Kelly tweeted a picture of the screen playing a scene from Gravity.

 Follow

Scott Kelly 

✔@StationCDRKelly

#Movie night in micro #Gravity aboard #ISS on our new HD projector which we use for conferences, tech software, etc..

8:37 PM - 25 Apr 2015

 
•  2,7162,716 Retweets
 
•  3,3753,375 likes

According to Wired, astronauts order movies the same way you would order Netflix DVDs to your doorstep (they just might take a little longer to get there).

"Every crew can request and have delivered on a number of cargo vehicles (as the cargo allotment permits) a contemporary collection of DVDs for their viewing enjoyment," Stephanie Schierholz, a NASA spokesperson, told Wired.

"TV and films, along with books and music, are important aspects of psychological support for astronauts on long-duration missions."

Gizmodo recently published a list of more than 500 movies and TV shows that are available to astronauts on the ISS, ranging from comedies like Ghost Bustersto action flicks like The Terminator. And of course the list includes obvious space-based classics such as Starship Troopers and Star Trek.

So next time you’re kicking back and watching a movie, just think: somewhere out there an astronaut might be doing the same thing... in space.

This article was originally published by Business Insider.