Ornithopter is an aircraft designed to derive its chief support and propulsion from flapping wings, much like a bird.
about 900
They do not generate enough heat to burn a book if cliped on and the bulb not close.
350 degree Fahrenheit of temperature.
Big birds can fly over parking lots on sunny days without flapping their wings because of the rising hot air acting as a thermal current which creats lift and negates the need to flap their wings. The wings in these circumstances act like the wings of a glider.
grow wing and then go to KFC and get some chicken feathers and some tar and go to the highest building and jump of and flap your arms like a little kid getting raped by Michael Jackson who is getting hunted by the Olive Warrior
There are many ways how electricity can create heat. For example, passing a current through a wire of high resistance (i.e. a resistor) will generate heat, though not much.
A human body generates around 100 watts of heat at rest, but this amount can increase with physical activity or environmental conditions.
That is not a straightforward answer because heat isn't produced by body weight but as a waste product of metabolism. The more metabolically active a tissue is, the more heat it will generate. So like muscle tissue will generate more heat than adipose (fat) tissue.
1 watt = 1 joule per second = 0.000239 food calories of heat per second
Uranus and Neptune are the two jovian planets that do not have a significant internal heat source. They receive most of their heat from the sun and do not generate as much internal heat as Jupiter and Saturn.
Titan has a thick atmosphere compared to Earth but much thinner than Venus. With the low gravity on Titan, it has been suggested that a human could fly in the atmosphere by attaching wings to his arms and flapping them up and down.