How the battery was invented because of an unfortunate frog

Frog photo by Bignoter (English WP) [GFDL (http://www.gnu.org/copyleft/fdl.html) or CC-BY-SA-3.0 (http://creativecommons.org/licenses/by-sa/3.0/)], via Wikimedia Commons. Battery (photo credit graphicstock.com)

How the battery was invented because of an unfortunate frog

February 17, 2016

Italian scientist Alessandro Volta is credited as the inventor of the electrical battery, but a frog played a role. Volta’s invention, the voltaic pile, was made up of pairs of copper and zinc discs on top of each other. A layer of cloth or cardboard soaked in brine separated the discs, and acted as the electrolyte. This produced a stable and continuous current, and lost little charge over time when not in use – although the voltage wasn’t strong enough to produce sparks…

5 REALLY Simple Ways To Make Your Phone Battery Last Longer

November 16, 2015

jon

7dayshop, Android, batteries, iPhone 6S, mobile phone, mobile phone charger, mobile phones, smartphones, technology

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Easy ways to keep your phone going longer – a light-hearted look at options to ensure the battery lasts longer while out and about. 1. Turn down the screen brightness Okay, so you might struggle to see your phone screen on a bright day – but you could try shielding it with your hand. And it could help your phone battery last that crucial little bit longer. You could also try making your screen timeout – when the display goes dark…

Battery-powered toys set to dominate Christmas wish lists – stock up on batteries now

November 26, 2014

jon

7dayshop, Batteries, Battery Cases, Battery Chargers, Battery Tester, Christmas 2014, toys

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Have enough batteries to avoid toys not working on Christmas Day. Whether it’s a robot dinosaur, a family game or a doll, the Toy Retailers Association list of what the most popular toys are expected to be this Christmas reveals many in the top 12 use batteries. As youngster draw up Christmas lists, check if toys come with batteries and what type they need – eg alkaline batteries. Have enough batteries in reserve so toys don’t run out of power too soon. And don’t forget adults, their presents may need batteries. Watch:…

Batteries (photo credit: Graphicstock.com)

The battery that charges in minutes and has a 20-year lifespan

October 15, 2014

jon

7dayshop, Batteries, Battery Cases, Battery Chargers, Battery Tester, how to guide

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The new battery can be charged up to 70 per cent within 2 minutes and has a lifespan of more than 20 years – more than 10 times longer compared to existing lithium ion batteries. Scientists at Nanyang Technology University (NTU) in Singapore have developed the batteries and say they could have a revolutionary impact from mobile phones to tablets and especially electric cars. Electric car owners could save huge amounts on battery replacement costs and recharge their vehicles within minutes, according…

Photographing submarines, Margaret Thatcher to Scottish landscapes and crystal balls… one photographer’s story

August 11, 2014

jon

7dayshop, Batteries, camera, cameras, Faslane, HDR, helicopter, how to guide, macro photography, Margaret Thatcher, memory, memory cards, microSD, photo gallery, photographer, photography, photography tips, PhotooftheDay, photos, Prince Charles, Royal Navy, royalty, Scotland, SD cards, submarine, Zenit B

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It might seem an obvious thing to say, but people really do live the most extraordinary lives. Iain Ferguson was at the UK’s photographic “frontline” of the Cold War after developing a passion for photography and video from an early age. That passion for photography has also continued through his life – with stunning results. A passion for photography As a youngster, Iain started off his photography and video interest by using the family video camera. As a teenager he started…

Turning professional: the former RAF man making photography a business

July 8, 2014

jon

7dayshop, Batteries, Battery Chargers, digital photography, festival, how to guide, Jack Straw, kappers, kite, lens, memory cards, music, music photography, photography, photography tips, PhotooftheDay, photos, Prince Andrew, Prince Charles, royalty, weather

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For many amateur photographers, the dream is to make it as a professional. And for Pete Dewhirst, it’s dream that became a reality. He has since gone on to photograph royalty, politicians, music events and protests. Pete made the move having spent a career in the RAF and working for an international telecommunications company with both jobs taking him around the world. In between, Pete has found time to excel in triathlons and duathlons and going on to represent Britain! Love of…

Motor racing photography: great tips and photos

June 26, 2014

jon

7dayshop, Batteries, digital photography, gallery, Le Mans, memory cards, motorsport, motorsports, photo gallery, photography, photography tips, PhotooftheDay, photos, racing, racing cars

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This is an amazing action-packed gallery packed with racing cars as well as useful tips for motorsport photography taken by 7dayshop customer Stefan Cloete. See more amazing pictures & photo tips – just click on the images below Further useful links Stock up on batteries Find the memory card you need at a great price How many memory cards do you need to “equal” the human brain? See what people are saying on Facebook Shop at 7dayshop.com

Amazing photos from the sky: aerial kite photography

June 2, 2014

jon

7dayshop, Aerial, Aerial Kite Photography, Batteries, cameras, digital photography, Guernsey, kappers, kite, memory cards, photography, photos

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You might think that flying kites is for kids, but there is a worldwide community of photographers who use them to take kite aerial photography (KAP). Using kites and some pretty simple kit, so-called KAPers often produce stunning photos. Aerial photography: something different Kevin Lajoie is one such KAPer. He’s been using kites to take incredible images in and around the Channel Islands for the past six years. I caught up with him on a beautiful sunny day on the…

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