Archive for September, 2010

The Bladeless Fan – technology found in jet engines to generate a cooling air

fan bladeless

The Bladeless Fan.

Winner of Time magazine’s “Best Inventions” award, this is the fan that uses technology found in jet engines to generate a cooling air stream without any blades.  A turbine inside the base draws in air and propels it up to the loop amplifier. Air is expelled through a 1-mm slot along the circumference of the loop amplifier and across a 16º airfoil-shaped ramp. Using the aerodynamic principles of inducement and entrainment, the fan draws air from behind and along its sides into the air stream, generating optimal air velocity. The bladeless fan produces a smooth, uninterrupted stream of air, unlike typical fan blades that “chop” air into uneven, intermittent breezes. A dial allows smooth, continuous adjustment of air velocity. The fan’s 5 1/2″-diameter base sets up unobtrusively on a desktop or table, it oscillates 90º, and tilts 10º up or down.

Source:  Hammacher

Popularity: 24% [?]

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The 14 Day Lantern – 14 days of continuous light on four D batteries

lantern 14 days

The 14 Day Lantern.

This is the lantern that provides 14 days of continuous light on four D batteries. The lantern’s LEDs use a fraction of the energy of traditional bulbs, allowing them to produce 160 lumens of bright light for 336 consecutive hours on the lowest setting (175 hours on high). Its cylindrical design provides 360º of unimpeded illumination, and the bulbs produce almost no heat, making the lantern safe for children and uninteresting to insects. The lantern has a durable waterproof case and it will remain buoyant and operational if dropped in water. An integrated handle ensures ease of portability and can also be used to hang the lantern for hands-free lighting. Requires four D batteries.

Source:  Hammacher

Popularity: 21% [?]

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