Cycle

Haze changed down a gear to allow for the increase in gradient. A heavy sweat began to trickle down his back. There was a time when cars sped up this hill with the minimum of effort, slipping down into third to cruise past the trucks stuggling up the outside lane. Read more…

Learning to fly

THE LIFT EQUATION FOR RIGID WINGS ARE STRAIGHTFORWARD ENOUGH . BUMBLE-BEES ARE FAIRLY BIG , WEIGHING ALMOST A GRAM , AND HAVE A WING AREA OF ABOUT A SQUARE CENTIMETRE . WHEN ALL THE FIGURES ARE COMPUTATED , YOU FIND THAT BEES CANNOT GENERATE ENOUGH LIFT AT THEIR TYPICAL FLYING Read more…