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So it’s no wonder that our tester, Alyce Tassoni, was very excited to try the new side-by-side Nuna trvl™ dubl from the cult-favorite brand, with her 15-month-old twins.
The main changes to the Nuna 4 from its predecessor the Nuna 3 are a steering wheel instead of levers, an upright seat instead of the driver lying down and a smaller solar panel of 6 m 2 compared to the previous 9 m 2. These changes were necessitated by changes in the rules prompted by alleged safety concerns and attempts to make the car more ...
The Nuna REVV comes with a few built-in safety features, like an anti-rebound base, steel-reinforced shell, side-impact protection system, energy-absorbing foam and integrated rebound bar (that ...
The passive yaw systems utilize the wind force in order to adjust the orientation of the wind turbine rotor into the wind. In their simplest form these system comprise a simple roller bearing connection between the tower and the nacelle and a tail fin mounted on the nacelle and designed in such a way that it turns the wind turbine rotor into ...
It consists of a girdle-like contraption that is worn around the body, with a hook for attachment. [1] Hooking-in the harness is done by pulling the sail toward the body and hooking into the harness lines on the boom. The harness turns windsurfing into a long lasting activity, taking the weight of the sail off the arms of the windsurfer.
An aerostat-type wind power system relies at least in part on buoyancy to support the wind-collecting elements. Aerostats vary in their designs and resulting lift-to-drag ratio; the kiting effect of higher lift-over-drag shapes for the aerostat can effectively keep an airborne turbine aloft; a variety of such kiting balloons were made famous in the kytoon by Domina Jalbert.
The airborne wind shear detection and alert system, fitted in an aircraft, detects and alerts the pilot both visually and aurally of a wind shear condition. A reactive wind shear detection system is activated by the aircraft flying into an area with a wind shear condition of sufficient force to pose a hazard to the aircraft.
A sophisticated economic system in imperial China gave birth to inventions such as paper money during the Song dynasty (960–1279). The invention of gunpowder in the mid 9th century during the Tang dynasty led to an array of inventions such as the fire lance , land mine , naval mine , hand cannon , exploding cannonballs , multistage rocket and ...