Haya viwanda vilikufa so,ulitaka tufanye nini labda yaani tuketi and mourn the entire day coz of the past that 'll never return for us to change ...wewe sikuiti hata pessimistic maana haupo katika group hilo yaani nikuite noise maker
General tyres inafufuliwa na viwanda vingi vinajengwa ambavyo ni heavy ones na hii ndio maana halisi ya industrialization maana hakuna nchi iliyofanikiwa KATIKA sekta ya viwanda katika muda wa miaka mitano...chochote utakachokitaka ni lazma ukipange ili kiwe kwa muda mrefu..
Mnapishana na uelekeo wa dunia!
Angalia hapa uone dunia inakoelekea.
Future batteries, coming soon: Charge in seconds, last months and power over the air
MAX LANGRIDGE AND LUKE EDWARDS13 APRIL 2017GADGETS
WCCFTECH
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While smartphones, smarthomes and even smart wearables are growing ever more advanced, they're still limited by power. The battery hasn't advanced in decades. But we're on the verge of a power revolution.
Big technology companies, and now car companies that are making electric vehicles, are all too aware of the limitations of lithium-ion batteries. While chips and operating systems are becoming more efficient to save power we're still only looking at a day or two of use on a smartphone before having to recharge. That's why universities are getting involved.
We've seen a plethora of battery discoveries coming out of universities all over the world. Tech companies and car manufacturers are pumping money into battery development, and with races like Formula E adding pressure to improve, that technology is only going to get greater.
But while we've been writing about these developments for years they still haven't made it to our phones. This is because everyone is waiting for the perfect replacement before making the jump. That, and commitments to current batteries thanks to manufacturing techniques that cost a lot to change and existing deals for minerals being hard to break.
Things are starting to change though, so we've collected all the best battery discoveries that could be with us soon. From over the air charging to super-fast 30-second re-charging, you could be seeing this tech in your gadgets sooner than you think.
POWER TECHNOLOGY
Lithium-air breathing batteries
Lithium-air means using oxygen as the oxidiser, rather than a material. The result is batteries that can be a fifth of the price and a fifth as light as lithium-ion, plus they could make phones and cars last five times longer.
The new discovering was made at Dallas University and should help push developments in lithium-air forward. Of course, like a all research, this could still be five to ten years away from becoming a reality.
Bioo plant charger
The Bioo is a plant pot that harnesses the power of photosynthesis to charge your device, be it a tablet or phone. This already exists and can be bought now.
Bioo offers two to three charges per day at 3.5V and 0.5A via a USB port that's cleverly disguised as a rock. The pot uses organic materials that react with the water and organic matter from the plant's photosynthesising. This creates a reaction that generates enough power to charge gadgets.
This is just the start, imagine entire forests harnessed in this way. Not only could cities be powered with 100 per cent green energy but there could be yet another reason to protect plants and trees.
Gold nanowire batteries
Great minds over at the University of California Irvine have cracked nanowire batteries that can withstand plenty of recharging. The result could be future batteries that don't die.
Nanowires, a thousand times thinner than a human hair, pose a great possibility for future batteries. But they've always broken down when recharging. This discovery uses gold nanowires in a gel electrolyte to avoid that. In fact these batteries were tested recharging over 200,000 times in three months and showed no degradation at all.
This could be ideal for future electric cars, spacecraft and phones that will never need new batteries.
Magnesium batteries
Scientists have discovered a way to harness magnesium for batteries. This means smaller, more densely packed units that won't need shielding. In the long run that should mean cheaper batteries, smaller devices and less reliance on lithium-ion. Just don't expect to see these appear soon as they're still in the developmental stages.
Solid state lithium-ion
Solid state batteries traditionally offer stability but at the cost of electrolyte transmissions. A paper published by Toyota scientists writes about their tests