The Spun Chair: A Playful Sculpture That You Can Sit Upon

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Our first entry into the MetaEfficient gallery is the Spun Chair by Heatherwick Studio. Is it an oversized toy? Is it a sculpture? Is it a piece of furniture? All three perhaps. I first spotted the Spun Chair while at the Hammer Museum in Los Angeles. Everyone who took the chair for a spin seemed to be delighted. The chair gives …

The Best C-Size Rechargeable Batteries Of 2015


The best rechargeable C-size batteries are Acculoop C cells, by Accupower. These batteries are the new low self-discharge NiMH (Nickel Metal-Hydride) cells, and they have a high capacity of 4500 mAhs (milliamp hours).

Do Rechargeable Lithium-Ion AA Batteries Exist?


Do rechargeable lithium-ion batteries exist in standard sizes like AA, AAA, C or D? Yes, they are finally available. A company called Kentli has released AA and AAA rechargeable lithium polymer batteries that output 1.5 volts. Kentli batteries are available on Amazon here. Lithium-ion batteries normally operate 3.7V per cell — but Kentli put circuitry inside the cells to reduce the voltage …

The Best LED Desk Lamps Of 2015


Best Overall: TaoTronics Elune Desk Lamp The TaoTronics Elune is priced at $50 and it is probably the best value LED desk lamp available. This lamp has 30 LEDs that shine with 450 lumens at full power. The lamp has a slide touch switch on the top that allows you to adjust the brightness to any one of 7 brightness levels. …