Two Wind Farms Get New Zealand Closer To 90% Renewable Power

New Zealand is one big step closer to accomplishing the ambitious goal of generating 90% of its electricity from renewable sources by 2025. The country already produces nearly 80% of its power from clean sources, including hydropower, geothermal, and wind farms. With hydropower approaching its natural limit, New Zealand is investing heavily in two huge new wind farms.

Astrophysicist’s Technique Could Cut Plane Boarding Time In Half

Fermilab scientist Jason Steffen recently presented a creative and simple solution to a problem that affects hundreds of millions of people per year: inefficient airplane boarding procedures. Typically, airlines board in several zones, from back to front, one zone at a time. Though it may appear logical, this method is full of disorganization. Passengers in a given zone are all …

Lighting Costs Cut By 90% Using Intelligent LEDs

A company called Digital Lumens has introduced product that networks LED lights together to form an “intelligent” lighting system. The system can turn on lights if people are present in a room, and adjust brightness levels over the course of a day. Overall, the system can cut lighting costs by 90% for commercial sites like warehouses. A real world example is …

Charging USB Devices With AA Batteries

Charging USB Devices With AA Batteries

In this article, we will share with you some devices that use AA batteries to charge USB-powered small electronics. These devices provide a convenient way to stretch the time between wall outlet recharges.

LED Lamps That Glow With Warm White Light

LED Lamps With Warm White Illumination: Koncept Z-Bar ($165) and i-Tower ($195) Pablo Designs LIM L Floor ($350) Cree XLamp XR-E Warm White LED Lantern ($25) The color temperature of light is measured in degrees Kelvin. Lower-temperature white LEDs (around 2,000-4,000 K) are warm (yellowish white) like incandescent bulbs. White LEDs with higher color temperatures (above 5,000 K) are cool …

The Best Electric Boat Motors

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The Best Electric Boat Motors: Minn Kota Endura C2 30 ($99) Minn Kota Endura C2 55 ($257) MotorGuide VariMAX V55 – Freshwater, Pontoon Mount ($414) Torqeedo Travel 1003 ($1,999) Compared to gasoline-powered boat motors, electric outboard motors provide quieter operation, no exhaust fumes and zero emissions. Electrics are great as the primary means of propulsion for small boats, a secondary …