Samsung Series 5 Ultra review

Samsung has plenty of experience in crafting slim, powerful laptops, but unlike its premium Samsung Series 9 ultraportable, the Samsung Series 5 Ultra appears to be more of an "everyman" device.

It won't out-power Ultrabook rivals such as the Dell XPS 13, Acer Aspire S3 or Asus Zenbook UX31, and it doesn't look A jaw-droppingly attractive. But importantly, and some would say crucially, it won't cost you the Earth, either.

The Samsung Series 5 Ultra is available in two models - a 13.3-inch model, the NP530U3BI, priced at £799.99 in the UK or $879.99 in the US, and a 14-inch model, the NP530U4BI, costing £849.99 or $899.99.

Considering most Ultrabooks retail for £899-£1,100, this makes the Samsung Series 5 an attractive proposition for anyone on a budget.

Samsung Series 5 Ultra review

Both models pack in mid-level Intel Core i5-2467M processors, but the 14-inch model comes with an optical drive and an HDD capable of being upgraded to an impressive 1TB of storage space.

Our review unit was the smaller 13.3-inch model, but at 20mm in thickness, the Samsung Series 5 Ultra 530U3B is still one of the bulkier Ultrabooks we've seen. It's comparable to the HP Envy 14 Spectre but unlike that machine, the chassis doesn't feel chunky.

It has the sloping, blade-like appearance of other Ultrabooks and weighs a miniscule 1.5kg.

The outward design is attractive without being breathtaking. The plain silver design is equally well placed at home or the office, and the brushed metal finish won't attract smudges the same way a reflective surface would.

Samsung Series 5 Ultra review

Look below the surface, though, and you'll soon notice the Samsung Series 5 Ultra 530U3B has a few tricks up its sleeve. Most notable is the option of including a 500GB HDD alongside a fast-booting 16GB SSD, giving you both space and speed.

The usability of the machine hasn't been ignored either, and the keyboard and touchpad are indicative of Samsung's usual excellence.

Standing out from the crowd of Ultrabooks isn't getting any easier, and whether this - Samsung's first attempt - is strong enough remains to be seen.

It might get noticed thanks to the friendly price, but can the rest of the machine live up to the Ultrabook moniker?

Toshiba Portégé R830-138 review

We had to pick up our jaws up from off the floor too. It's going to take a damn sight more than a sophisticated-sounding French moniker to distract you from this laptop's gargantuan price. But the Toshiba Portege R830 must be an astonishing piece of kit, right?

Designed for the busy executive who wants a laptop that doesn't interfere with the shape of a soft Italian leather briefcase, Toshiba's wafer thin Portégé R series has long been one of the standards to beat when it comes to building a thin and light laptop.

Weighing less than 1.5kg, this Toshiba still packs a high clockspeed CPU beneath its demure black casing, and promises much in the way of business enhancements for the busy traveller. Thanks to that quick Core i5, it beats all but the quad core in the Acer 8951G in productivity benchmarks, and weighs well under half of that monster's tonnage.

How does it compare to the Core i7 in the Zenbook? That chip has a lower overall power draw and an extra megabyte of memory, which shows up best in the gaming benchmarks – but for general use the Core i5 here is oddly a little bit better.
TechRadar Labs

tech labs

Battery Eater '05: 271 minutes
Cinebench: 10747
3DMark 2006: 3752

Battery life is more impressive. Running for just over four-and-a-half hours in our stock test, which includes a looping HD video, you can eke out up to eight hours of run time with a bit of care – that's a full day at the office, which you could spend at the coffee shop instead.
How much?

Toshiba r830

The problem that Toshiba faces is the arrival of the Ultrabook, in this case a role played by Asus' Zenbook UX31. Where once 'thin' and 'light' commanded a premium in the market for their cleverly engineered heatsinks, the UX31 is an even lighter and – in some respects, like instant start up – more capable machine for a third less cash.

To make matters worse, the magnesium alloy with which Toshiba coats the Portégé R580-138 may help to keep the weight down, but you'd be forgiven it's a cheap plastic rather than a metallic shell. It's soft, it flexes to the touch and it doesn't feel like it offers much protection next to the deadly corners of the Zenbook.

There are some advantages to the Portégé. It has a better screen, for example – there's a slight blue colour cast and an overly bright backlight, but these are both easy to tune out in the settings. You also have easier access to the underside for upgrades and changing the battery.

But despite its future-friendly Sandy Bridge CPU, the Toshiba leaves the distinct impression of being very 'last-gen' thin and light. Yes, you can carry it in one hand, but there's very little on offer that an Ultrabook doesn't do better.

Unless you count the incredible amount of pre-installed software, most of which simply raises the question: why? There are peculiar application choices. Like the games market, Amazon and eBay apps – they have no business on what is ostensibly a very sensible corporate machine, and give the Portege a slightly confused identity. You can remove them, of course, but they shouldn't have been there in the first place.

What we're really looking for is a reason to buy this over the cheaper, faster Zenbook. So far we have larger hard drive and a built-in DVD player, and Toshiba's support options are good if you want a business critical device and service. But it isn't enough any more; not at this colossal price.

Follow TechRadar Reviews on Twitter: http://twitter.com/techradarreview

Lenovo IdeaPad U300S review

The wait for the flurry of Intel ultrabooks is over, and the Lenovo IdeaPad U300S is among the latest super thin and light Windows laptops to come to the fore.

It joins the likes of the Toshiba Portege Z830, Toshiba Satellite Z830, Asus Zenbook UX31 and Acer Aspire S3 in the ultrabook range, a new kind of laptop category that is critically important for the future of the entire market.

Ultrabooks are super-thin, light, sleek and powerful laptops that aim to emulate Apple's recent gains with the Apple MacBook Air, and finally give consumers a reason to invest in PCs again.

Lenovo ideapad u300s review

The Lenovo IdeaPad U300S is the last in the current line of ultrabooks to hit the shelves, and with a host of new models rumoured to be released at CES 2012 in January, it needs to offer a potent mix of power, great looks and competitive price to stand out among the early salvos from Acer, Asus and Toshiba.

However, our first impressions are underwhelming.

Lenovo hasn't obsessed over aesthetics, and this laptop is no Apple MacBook Air clone. It seems chunky next to the wafer-thin Asus Zenbook, which features a wedge-shaped design that tapers off to a thin, blade-like point.

The Lenovo IdeaPad U300S retains its 16mm thickness across the chassis, giving it the impression of being squat.

The body is aluminium, and weighs 1.4kg, the same as the Acer Aspire S3, but much heavier than the Toshiba Portege Z830 and the Toshiba Satellite Z830-10U. If you're looking for an ultrabook that will turn heads, you will most likely look elsewhere, but can the Lenovo IdeaPad U300S impress with power?

Packard Bell EasyNote TS11 review

ThePackard Bell EasyNote range might not be as front-and-centre as Dell's Inspiron or HP's Pavilion brands, but nevertheless has established itself in our minds as a home for mid-level laptops at budget-level prices.

And we're happy to report that the EasyNote TS11-HR-695UK is a similarly reliable slice of mid-level computing goodness.

It shares the same floral pattern as other Packard Bell EasyNote laptops. There are also a range of colours to choose from, but the pattern is harder to pick out on the black model than the red or white versions. The pattern continues on the palm rest inside the laptop, although the keyboard and rest of the chassis is matte black.

The keyboard itself is a full-length affair with an additional numerical keypad and a couple of extra hotkeys thrown in. The chicklet keys are great for typing on and the overall experience is excellent. There are no issues with odd-sized buttons as common keys like Enter, Backspace and Shift are all well-proportioned and where you would expect to find them.

The touchpad has the same glossy coating as the lid and palmrest and is a little on the sensitive side, although you can adjust this in Windows. It's not the largest around but the single click button works well.
Impressive performance

Unlike the bigger TS13 models, the EasyNote TS11 sports a smaller, Intel Core i3 CPU which works to keep the cost down. However, in terms of performance, we were impressed at the 8159 score this machine posted following our benchmarking tests. Even though it's the budget choice, this dual-core chip will give you a smooth experience when multitasking.

Thanks to a capacious 6GB of RAM we had no problems quickly working around several documents, even with multiple web pages open and music streaming.
TechRadar Labs

tech labs

Battery Eater '05: 249 minutes
Cinebench: 8159
3DMark 2006: 4346

Graphics are handled by the integrated graphics chip bundled onto the Sandy Bridge CPU and provides a reliable, if basic, experience. You can safely manage older games and a spot of photo editing but beware of anything more demanding.

Connectivity is similar to other laptops at this price point. There are three USB ports for peripherals and HDMI and VGA connections for external displays. You can use the 802.11n Wi-Fi connection or the Ethernet wired port for connecting to the internet and there's a Kensington security slot for locking the EasyNote TS11 securely.

There's no doubt that the EasyNote TS11 is a friendly machine. From its decorative pattern, to the social networking hotkey, this seems like a safe choice for a mid-level laptop. Beyond that, though, there's some serious performance underneath. For this price point we reckon the Packard Bell EasyNote TS11 stands as a secure and reliable purchase.

Follow TechRadar Reviews on Twitter: http://twitter.com/techradarreview

HP Pavilion dv6-6b50sa review

Clad in HP's customary black and silver, the £600 HP Pavilion dv6-6b50sa is an affordable, feature-packed media laptop. While it obviously doesn't match up to the premium experience offered by HP's Envy range, it's got plenty to recommend it to anyone who needs to keep their budget in mind.

First, and most obviously, it's a great machine to look at. HP consistently turns out attractive computers and this is no exception.

Despite only being a 15.6-inch laptop, it's a little bit on the chunky side, but with the chassis dimensions measuring 378 x 247 x 35mm.

The entire body is brushed silver aluminium with speaker grills and air vents mixed with jet-black plastic for the keyboard, touchpad and screen bezel.

There's no flex on evidence anywhere around the chassis and the tough metal casing seems like it could take a knock or two without any problems. Of course, all that design doesn't do the weight any favours, and the HP Pavilion dv6 is noticeably heavy, at 2.9kg. This isn't exactly a laptop to be carrying around all day.

The HP Pavilion dv6-6b50sa will obviously find a lot of favour with audiophiles. Dr Dre's Beats audio technology is being incorporated into all HP laptops, and the extra functionality is welcome.

HP pavilion dv6-6b50sa

Along with the single speaker strip at the base of the screen, there are two smaller stereo speakers at the front of the palm rest. We didn't have a problem using the dv6 to fill the office with music, although the quality does disintegrate a little when you turn it right up.

The comprehensive Beats Audio Control Panel means you can adjust and tune the audio performance of the HP Pavilion dv6-6b50sa to your heart's content.

You can shift the emphasis across the speakers for listening or take advantage of features such as noise and echo cancellation for recording. If you have an external microphone, editing software and some sheet music to hand, this laptop is an excellent tool for crafting some of your own tunes.

If you're prepared to make the substantial investment in a pair of Beats headphones, then the experience is very impressive indeed and makes a big difference when watching a film, for example.

In terms of the screen, the 15.6-inch display on the HP Pavilion dv6-6b50sa is bright and clear, with suitably sharp images. Don't expect to hit Full HD 1080p though, since the pixel resolution precludes this machine playing anything above a 720p high-definition picture.

A quick mention must go to the viewing angles and the reassuringly solid hinges on which the screen sits. There's also a relatively thin bezel, which helps improves the viewing experience.

For typing, the isolation keyboard works well and gives the chassis a spacious look. The smallish keys respond firmly and accurately and the large backlit touchpad has a thick texture to it. It would have been great to see the keyboard itself backlit, though.

Although predominantly a multimedia machine for the home, HP has also included a business-like fingerprint scanner on the right palm rest. This gives you an extra level of security to protect your documents and media.
TechRadar Labs

tech labs

Battery Eater '05: 207 minutes
Cinebench: 7807
2DMark 2005: 5576

Inside the HP Pavilion dv6-6b50sa is an Intel Core i3 2330M CPU. This is the baby of the Sandy Bridge family and part of the reason the price on this laptop is so reasonable. It can't match the Core i5s and Core i7s of this world for power, but that really shouldn't prove too much of a problem for most users.

And the main reason we're not too worried about the lesser processor is that HP has compensated with loading more RAM into the Pavilion dv6-6b50sa.

While most machines would offer 4GB of RAM, the HP Pavilion dv6-6b50sa has 6GB tucked inside to keep the Windows 7 operating system running quickly. What this means in practice is that you can multi-task comfortably and work with any number of web pages without your browser freezing.

Also included in the package is an AMD Radeon HD 6490M dedicated graphics card to take some of the visual strain away from the processor.

Although not always as revered as Nvidia GPUs, AMD graphics chips are solid enough. And although you won't be doing any high-intensity gaming on the Pavilion dv6, other graphical demands - such as streaming movies from a service like Netflix - should be no problem.

We were also pleased to find that the HP remained not only quiet, but also cool to the touch during periods of intensive use.

The connectivity on the HP Pavilion dv6-6b50sa is pretty standard for this price point; there are four USB ports and both VGA and HDMI for external displays. You can use 802.11n Wi-Fi or Ethernet to connect to the web, and there's also a 2-in-1 memory card reader.

One last point to raise is that often we find HP machines to be loaded full of the company's own software. Most of the time these are a waste of space. Thankfully, in this case the pre-loaded software is limited to just a few programs.

We feel HP has done a good job revamping its laptop range, and the admittedly attractive HP Pavilion dv6-6b50sa offers a good all-round choice for a reasonable price.

Although the processor isn't top of the range, the added RAM should give this laptop a decent lifespan and make it a reliable purchase for most users.
Verdict

Anyone who wants a machine predominantly for media or music usage can add an extra star to the score.

Follow TechRadar Reviews on Twitter: http://twitter.com/techradarreview

Dell Latitude E6220 Advanced review

Although the focus at the consumer end of the laptop world is currently dominated by ultra-portables and Ultrabooks, business laptops such as the Dell Latitude E6220 Advanced ignore this trend, with a focus on solid performance for serious tasks.

It isn't the thinnest or lightest on the market but its powerful Core i7 processor, solid-state drive (SSD) and respectable battery life mean this 12.5-inch laptop won't slow to a halt when running demanding tasks.

Dell has chosen a two-tone design, with the keyboard and bezel in black, and a plastic/ polycarbonate material used on the lid and edge around it.

The screen is non-reflective and looks very sleek and sensible.

The keyboard isn't the isolated style found on nearly every new laptop these days, but reverts to a traditional design with each key touching the next.

While the general aesthetics of the Dell Latitude E6220 Advanced are good, an exception is its battery, with a large section that juts out at the back. This adds a few centimetres to the overall depth, making it less portable.

Although Dell has ignored many rules of ultra-portable design, the firm has adopted one of their worse aspects: a stingy array of ports. There are only two USB 2.0 ports, with a third port that can be used for either eSata or USB. USB 3.0 is nowhere to be seen, which is unacceptable on a modern business machine.

There are also HDMI and analogue VGA video outputs and a headphone jack. Sensibly, Dell remembered a wired Gigabit Ethernet port. There's also the option of a SIM card slot for HSPA+ mobile broadband.

Despite our criticisms, we were still impressed by the Latitude, thanks to its excellent performance. The Core i7-2620M processor runs at a whopping 2.7GHz, enough to make short work of demanding tasks. No ultra-portable even comes into the same league.

Despite relying on Intel's HD 3000 integrated graphics processor, the 3D results aren't bad either.
TechRadar Labs

tech labs

Battery Eater '05: 240 minutes
Performance: 11,202
Gaming: 5,239

The rest of the specification is more conservative. Dell's inclusion of 4GB of RAM is fine, but 8GB would have sweetened the offering.

Likewise, while an SSD is a great addition, having only 128GB of storage is rather limiting. Once the drive is formatted and Windows installed, there's little space left for a media collection or large apps. Again, we'd expect slightly more from a laptop that costs this much.

Despite our disappointment at certain aspects of the Latitude's specification, its battery life made up for it. Four hours may not sound impressive, but it is considering the processing punch of this PC.
Verdict

The Dell Latitude E6220 Advanced is a solid laptop, and if its specification matched its price tag, it would easily earn a recommendation. Unfortunately its shortcomings can't be ignored, so our impression is that while it could have been a winner, it must settle for the bronze.

Telltale Flashes Caught in disappearing act

The inside of a cylindrical antineutrino detector before being filled with clear liquid scintillator, which reveals antineutrino interactions by the very faint flashes of light they emit. Sensitive photomultiplier tubes line the detector walls, ready to amplify and record the telltale flashes.

Dueling Dinos Triceratops reigns alone

Triceratops may no longer have an identity crisis. As paleontologists lock horns on whether these dinosaurs were just baby versions of the largerTorosaurus, the latest clues suggest the two were indeed separate species.

A new study reveals immature and adult examples of both Triceratopsand Torosaurus. “I don't see any clear fossil evidence that one dinosaur turned into the other,” says Nicholas Longrich. He and fellow Yale paleontologist Daniel Field make their case online February 29 in PLoS ONE.

Comparisons between the dinos, which both lived about 65 million years ago in western North America, start with their skulls. Like many horned dinosaurs, Torosaurus sported a sizable frill of bone perforated with two big holes. Triceratops, in comparison, wore an unusually short and solid crown.

Searching for adult Triceratops, Longrich and Field grouped 35 skulls based on how fused together the bones were. Several Triceratops skulls had completely fused, a sign of maturity in modern animals. SomeTorosaurus skulls showed bones still joined by sutures, which are hints of youth.

But fused bones may not be a reliable way to gauge age, says paleontologist John Horner of Montana State University in Bozeman. “We recently collected 100 new Triceratops specimens they haven't seen,” he says. “We see a lot of variety in bone fusion.”

In 2010 Horner blamed Triceratops' unusual frill on youth. Patches of thinning bone on some skulls were steps toward full-fledged holes and aTorosaurus adulthood, he and Montana State colleague John Scannella argued.

Did You Know? How did turkey fowl get its name?

Guineafowl were also known as turkey fowl (or turkey hen and turkey cock) because they were imported to Central Europe through Turkey. Turkey fowl, shortened to just the name of the country, stuck as the name of the North American bird. When Europeans first encountered turkeys in the Americas, they incorrectly identified the birds as a type of guineafowl (Numididae). In 1550, English navigator William Strickland, who had introduced the turkey into England, was granted a coat of arms including a "turkey-cock in his pride proper".

Deep-Rooted Brain modulates sound sensitivity

The hair cells of the inner ear have a previously unknown "root" extension that may allow them to communicate with nerve cells and the brain to regulate sensitivity to sound vibrations and head position, researchers at the University of Illinois at Chicago College of Medicine have discovered.

Their finding is reported online in advance of print in the Proceedings of the National Academy of Sciences.

The hair-like structures, called stereocilia, are fairly rigid and are interlinked at their tops by structures called tip-links.

When you move your head, or when a sound vibration enters your ear, motion of fluid in the ear causes the tip-links to get displaced and stretched, opening up ion channels and exciting the cell, which can then relay information to the brain, says Anna Lysakowski, professor of anatomy and cell biology at the UIC College of Medicine and principal investigator on the study.

The stereocilia are rooted in a gel-like cuticle on the top of the cell that is believed to act as a rigid platform, helping the hairs return to their resting position.

Lysakowski and her colleagues were interested in a part of the cell called the striated organelle, which lies underneath this cuticle plate and is believed to be responsible for its stability. Using a high-voltage electron microscope at the National Center for Microscopy and Imaging Research at the University of California, San Diego, Florin Vranceanu, a recent doctoral student in Lysakowski's UIC lab and first author of the paper, was able to construct a composite picture of the entire top section of the hair cell.

"When I saw the pictures, I was amazed," said Lysakowski. Textbooks, she said, describe the roots of the stereocilia ending in the cuticular plate. But the new pictures showed that the roots continue through, make a sharp 110-degree angle, and extend all the way to the membrane at the opposite side of the cell, where they connect with the striated organelle.