Using metal ions with three or more positive charges, researchers in Tian’s laboratory bonded graphene-oxide flakes into a transparent membrane. This new form of carbon-polymer sheet is flexible, nontoxic and mechanically strong, in addition to being non-flammable. Why is graphene … Continue reading →

For applications where life times exceeding 10 years are expected, GEL batteries are the better choice. Flat plate GEL types are for high current discharges, and tubular plate types should be used for discharges of one hour or more. This … Continue reading →

No. US stocks are not being listed in India. Instead, NSE is listing its derivative product called NSE IFSC Receipts. The NSE IFSC (NSE International Exchange) will be offering trading in these receipts at a ‘low cost’. Can I buy … Continue reading →

approximately 28 hours. Your 4A charger will slowly charge up your 110Ah leisure battery, but perhaps not in the best possible way if it is heavily discharged. From flat, it could take approximately 28 hours to charge (110/4). How long … Continue reading →

You need a common ground for two batteries in parallel by definition. In order for them to be in parallel, their grounds must be connected to each other (and to the – side of the motor) and their positives must … Continue reading →

A portable power station is the best option if you need to juice up common personal electronics and small appliances while spending long periods of time away from household AC outlets, or if you want to have backup power ready … Continue reading →

There are two types of capacitive touchscreens; surface capacitive and projected capacitive. A surface capacitive touchscreen uses a transparent layer of conductive film overlaid onto a glass sublayer. What are the two types of touch screen? 4 Touch Panel Types … Continue reading →

We think the Galaxy Z Fold 3 is the best foldable phone you can buy thanks to its expansive, productivity-boosting screen. The addition of S Pen compatibility lets you jot down notes and drawings on the 7.6-inch display. The Z … Continue reading →

Graphene can be easily dispersed in water, which makes it highly popular among those trying to achieve better mechanical and electrical properties. As the most common solvent for graphene dispersion, scientists are able to easily the size of lateral graphene … Continue reading →

LiFePO4 batteries are ideal for use in UPS systems as they provide an outstanding combination of attributes including: High energy with long runtime and consistent discharge voltage. Stable chemistry – safe and non-toxic. Long life (10+ years) with no maintenance. … Continue reading →

Lithium golf cart batteries should be charged after every four to five hours of use. Make sure they are fully charged before you use them again. Even if you only use your lithium battery for a few minutes, still give … Continue reading →

Here’s how: Select Start > Settings > Privacy & security > Camera, then make sure Camera access is turned on. Make sure Let apps access your camera is turned on. Once you’ve allowed your apps to access the camera, you … Continue reading →

Project Dojo — Tesla’s new supercomputer Enable larger and more complex neural net models. Power efficient and cost-effective compute.” This means Dojo isn’t necessarily intended to be more powerful or faster than the GPU Cluster they already have. What is … Continue reading →

Luminar Technologies Inc.. Tesla Inc., whose boss Elon Musk says he can develop a fully self-driving car without using laser-sensor technology, has a contract to use such sensors from Luminar Technologies Inc. for testing and development, according to people familiar … Continue reading →

When you arrive back home, it’s important to recharge the jump starter as soon as you can. Most portable jump starters will plug directly into an AC outlet. Recharge the unit for at least 3 hours. Some units will require … Continue reading →