That's also surprising considering how dramatically different the iPad Pro is to previous iPads, but it helps that there are plenty of elements of familiarity here, despite the dramatically different size and target market. One glance tells you this is still very much an Apple iPad, thanks to its glass front and aluminium rear, chamfered-edge front and all-over immaculate build quality.It has an identical design to the iPad Air 2 and iPad mini 4. The front is all display, surrounded by narrow bezels on the longer sides and wider ones at top and bottom. A camera lens peeps out from the centre at the top and the home button with Touch ID capabilities nestles at the bottom.

Every other detail, almost, is the same as on the smaller-screened Apple tablets. Power button on the top edge: check. Volume up and down buttons on the right edge: check. Whacking great Apple logo on the middle of the back: check. On the Wi-Fi and cellular model – plastic stripe on the back and SIM card slot on the right edge: check and check. Single loudspeaker on bottom edge: oh, hold on.The iPad Pro, uniquely in Apple’s iPad range, has four speakers, two on the top and two on the bottom edge. As you’d imagine, this design change seriously upgrades the tablet’s audio capabilities.

There’s one other difference: on the left edge, three small circles sit innocuously in the middle. These form the Smart Connector, which attaches Apple’s Smart Keyboard or third-party accessories such as the Logitech Create keyboard case.For all the similarities to previous iPads, the Pro has one major difference: its size. The 12.9in display may not sound much bigger than the previous iPad’s 9.7in screen, but it looks huge in comparison.It’s much heavier than the iPad Air 2, but still lighter than the first iPad, weighing 713g for the Wi-Fi-only edition, and 723g for the Wi-Fi and 4G model. That’s heavier than many rival tablets, but it still feels light relative to its size.

If you have a lot of cash to spend and want a large, no-compromise gaming laptop, you only really need to consider a few names. The ‘big brand’ option is the Alienware 17, the latest model is once again top-notch, but the Asus RoG G752 offers a very similar package - including a 17.3in screen - with less of the "brand tax" that comes with Alienware.
That doesn’t mean it’s cheap, but does make it one of the very best laptops in the world for hardcore gamers. Even if the look is likely to have even more of a Marmite effect than last year’s terrific RoG G751, reviewed,.

ASUS ROG G752 REVIEW: PRICE
The Asus RoG G752 is a high-end gaming laptop, as powerful as Asus makes without heading into frankly odd territory with something like the RoG GX700. That’s a laptop with a desktop-grade GPU, but also needs a giant water cooling carbuncle on the back to use all of its power.
You don’t need to spend £2000 to get hold of a G752, though. Just like last year, Asus offers a fairly wide array of configs to suit different budgets.
In the UK that starts with the £1299 G752VT, which has a GTX 970M. That’s a great card, but a single but significant step below the GTX 980M you get in the G752VY, which costs £2,129 from Amazon and is the version Asus sent us for review. The full part code is G752VY-T7049T.
This spec will be overkill for many, especially since it includes 32GB RAM, which can be considered an ‘upgrade too far’ for pure gaming purposes, beyond future-proofing. But let’s see what it can do.
That's not so bad. This $199 (approximately £138, or AU$282) Chromebook feels solid, packs a nice keyboard and a fair amount of battery life, planting this among the better cheap options for staying connected. You will need to be near a Wi-Fi connection; this Chromebook runs Google's browser-based Chrome OS, and while the operating system has come a long way your options are still limited once you're disconnected.

But $200 will go a bit further these days, with options that offer more style, or stronger hardware, or (most importantly) a full operating system, thanks to bargain bin devices from HP, and even Lenovo, that run Windows 10.Chromebooks are supposed to be cheap, web-centric devices, keeping you connected with a minimum of fuss. The Walmart-exclusive Hisense Chromebook is a fine example, a nigh-disposable device that shone primarily because it was so cheap, at $150. The Asus Chromebook Flip C100 ($250; converted, £171, AU$349) tosses a touchscreen and a 360-degree hinge into the mix, though it sacrifices performance for long battery life. Google's own Chromebook Pixel is less convincing: an impressive machine saddled with an operating system that's simply too limited to justify paying $1,000.

• Lenovo ThinkPad X61 Tablet PC Battery
• Lenovo ASM 42T5209 Battery
• Lenovo Thinkpad R400 Battery
• Lenovo Thinkpad R61 Battery
• Lenovo Thinkpad R61i Battery
• Lenovo Thinkpad T400 Battery
• Lenovo Thinkpad T61 Battery
• Lenovo Thinkpad T61p Battery
• Lenovo ASM 42T5226 Battery
• Lenovo FRU 42T5227 Battery
• Lenovo 3000 C100 Battery
• Lenovo ThinkPad X200 Battery
• Lenovo ThinkPad X200s Battery
• Lenovo ThinkPad X201 Battery

The Lenovo 100S sits on the cheaper end of the spectrum, made of black plastic and weighing a scant 2.6 pounds (1.2kg). It's wholly unremarkable: there's a shiny little finish bordering the trackpad, but barring a few stickers and the Lenovo or Chrome branding dotted at various points around the chassis, I'd be hard pressed to tell this machine apart from the myriad of black boxes dotting the budget PC landscape.

The keyboard is roomy, so fingers won't feel cramped, and the keys offer a nice amount of feedback and depth with every press -- no typing mistakes here. The keyboard isn't backlit, but there's no chance it would be at this price.The Chromebook 100S has an 11.6-inch display, with a 1,366-by-768-pixel resolution. It does a fair job with color accuracy, but the contrast starts to degrade noticeably when viewed off axis. It's also not a touchscreen. The trackpad is fine, it's responsive and generally stayed out of my way as I bumbled around the Web. It never skipped a beat while I scrolled through web pages, or used the handful of trackpad gestures built into Chrome OS, which is appreciated.

There's an SD card slot on the side for importing files and photos, but I'd recommend using it for a bit of extra storage as the Chromebook only has 32GB of storage. That's dismal, but also kind of the point: the limited storage space hosts files you need ready, regular access to while the rest of your stuff will live in the cloud.

It’s been said before but we’ll say it again: today was hot in Buenos Aires. While that means a change into shorts, string vests and neon sweat bands for humans, the cooling strategy for the Formula E cars is a little more challenging. As with this race last year, teams are expecting a tough time of it when it comes to keeping the battery operating in its sweet spot. Too hot and the battery’s safety systems will start throttling back the powertrain. That could mean a much closer field in tomorrow’s energy-limited race, where the battery thermal conditions play a much bigger role than in qualifying.

Salvador Duran’s first run in a Formula E car since those few slow testing laps for Trulli in the pouring rain at Donington Park last summer – shakedown in BA – lasted all of three minutes. After strapping back into what is essentially exactly the same Aguri machinery as he was driving last year, Duran locked up at T10 and narrowly avoided the barrier. He came to a halt in a run-off area. The car sat alone for four minutes until the session was eventually red flagged for recovery.

A second red flag was thrown out with little more than 10 minutes remaining of shakedown after Loic Duval ran wide and clipped the wall with the right front of his shiny red Dragon Racing car. Duval tried to wiggle back out and get going again but ultimately had to abandon his car and return to the pit lane in the safety car.

• Lenovo ThinkPad X201i Battery
• LENOVO ASM 42T4537 Battery
• IBM ThinkPad Z60m Battery
• Lenovo ThinkPad SL400 Battery
• Lenovo ThinkPad SL500 Battery
• IBM ThinkPad X41 Battery
• IBM ThinkPad X40 Battery
• IBM ThinkPad G40 Battery
• IBM ThinkPad R50E Battery
• IBM ThinkPad R52 Battery
• IBM ThinkPad T40 Battery
• IBM ThinkPad T42 Battery
• IBM ThinkPad T42P Battery
• IBM ThinkPad T43 Battery
• IBM FRU 08K8193 Battery

Nelson Piquet’s tail-happy car continued to shake its money maker all through shakedown. Formula E posted an excellent little video clip of the NextEV TCR car waggling its way around T5 like an overexcited puppy. If his Formula E prospects don’t improve, Piquet can console himself knowing that he’d be a perfect drift king for the next Fast and Furious movie.

Quick Nick is back in the driving seat for Mahindra Racing after recovering (mostly) from his injury. The German driver completed a successful shakedown after opting to wait until he had tried out the Mahindra car before committing to racing tomorrow. He’s been something of a good luck charm to the Indian team and they’ll be hoping he’s back to podium-capturing form tomorrow. Adam Carroll will therefore not make his debut this weekend in the electric sport but he’s pretty set on getting a drive sooner rather than later.

Renault e.dams may have been the team to beat so far this year but there are no signs of complacency at the French garage. Prosts junior and senior (or Nico and Alain, as they’re otherwise known) and team boss Jean-Paul Driot all talked about their concerns over the strength of ABT and Dragon. They’ve been saying that since testing at Donington Park last summer, however, while their lead seems to be increasing rather than narrowing. A little bit of red herring treatment, we reckon. Still, no software devices are ever completely bug-free (as anyone who has ever owned a laptop or smartphone will attest) and racing drivers do have a tendency to crash their expensive toys, so let’s see what tomorrow brings.

The study by researchers at the University of Wisconsin-Madison and the University of Minnesota is an early signal that the growing use of the new nanoscale materials used in the rechargeable batteries that power portable electronics and electric and hybrid vehicles may have untold environmental consequences.

Researchers led by UW-Madison chemistry Professor Robert J. Hamers explored the effects of the compound nickel manganese cobalt oxide (NMC), an emerging material manufactured in the form of nanoparticles that is being rapidly incorporated into lithium ion battery technology, on the common soil and sediment bacterium Shewanella oneidensis.

"As far as we know, this is the first study that's looked at the environmental impact of these materials," says Hamers, who collaborated with the laboratories of University of Minnesota chemist Christy Haynes and UW-Madison soil scientist Joel Pedersen to perform the new work.

NMC and other mixed metal oxides manufactured at the nanoscale are poised to become the dominant materials used to store energy for portable electronics and electric vehicles. The materials, notes Hamers, are cheap and effective."Nickel is dirt cheap. It's pretty good at energy storage. It is also toxic. So is cobalt," Hamers says of the components of the metal compound that, when made in the form of nanoparticles, becomes an efficient cathode material in a battery, and one that recharges much more efficiently than a conventional battery due to its nanoscale properties.

Hamers, Haynes and Pedersen tested the effects of NMC on a hardy soil bacterium known for its ability to convert metal ions to nutrients. Ubiquitous in the environment and found worldwide, Shewanella oneidensis, says Haynes, is "particularly relevant for studies of potentially metal-releasing engineered nanomaterials. You can imagine Shewanella both as a toxicity indicator species and as a potential bioremediator."

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