The Quercus also features a 750-W hub motor that peaks at 1,200 watts, for 80 Nm (59 lb.ft) of hill-climbing torque and a top pedal-assist speed of 30 mph (48 km/h) via a responsive torque sensor ...

Indeed, there are tons of e-bikes on the market now all claiming to deliver these three things, and the Quercus from California-based e-bike brand Rattan is the newest to stake a claim in the ...

WHAT: A missing oak species—the Quercus tardifolia—that was thought to be extinct, until nine botanical researchers scoured Big Bend in search of one last living tree. “It can be difficult ...

Policy & regulation are aligning with renewables cost declines to make projects more profitable and portfolios more sustainable. The Grid Edge comprises technologies, solutions and business models ...

Willow oak (Quercus phellos) is a deciduous, common oak tree. A member of the red oak family, this tree has a dense, usually rounded crown and simple, linear leaves. Willow oak trees are generally ...