A bowl of water is kept in the open for 24 hours then drained into a sand bucket.If this is done repeatedly, in as many localities as possible & overseen by the health department of local municipal bodies, can the procedure not contain dengue? Breeding will not progress beyond the egg/larva stage.
Both gears are identical, with an off centered axis of rotation.At the max. torque position, the smallest radius of the input driver meets the largest radius of the output driven gear.When the diameters are rotated 180 degrees, the largest radius of the input gear engages the smallest radius of...
A pair of spur gears, axis of rotation offset (offcenter) equally in both cases,pcd engagement adjusted automatically by a cam & finger arrangement will allow for a high starting torque changing to a high rpm after 180 degrees of rotation.This, hopefully, may act as a stop & go system.
I can try...
Air heaters
The tank could be fitted internally with finned air heaters powered by photovoltaic cells.This will increase tank pressure substantially.Small dia orfices at the outlet end will reduce the temperature.
I would like to power a cycle rickshaw with a pneumatic engine.A large diameter cylinder could be fitted with electric air heaters inside the cylinder, on either side of the piston.The heaters will increase pressure during each stroke of the piston.This will reduce pressure requirements.Speeds...