Search results
Results From The WOW.Com Content Network
Here are additional clues for each of the words in today's Mini Crossword. NYT Mini Across Hints. 1 Across: "Vertically challenged" — HINT: It starts with the letter "S"
Here are additional clues for each of the words in today's Mini Crossword. NYT Mini Across Hints 1 Across: Urban green space — HINT: It starts with the letter "P"
To restore the insect to its original vertical position, the average upward force during the downward stroke, F av, must be equal to twice the weight of the insect. Note that since the upward force on the insect body is applied only for half the time, the average upward force on the insect is simply its weight. [14]
A larviform female with light-emitting organs on her abdomen. Unlike actual larvae, she has compound eyes. Fireflies are beetles and in many aspects resemble other beetles at all stages of their life cycle, undergoing complete metamorphosis. [6] A few days after mating, a female lays her fertilized eggs on or just below the surface of the ground.
Archimedes' principle states that the upward buoyant force that is exerted on a body immersed in a fluid, whether fully or partially, is equal to the weight of the fluid that the body displaces. [1] Archimedes' principle is a law of physics fundamental to fluid mechanics .
There are two basic aerodynamic models of insect flight. Most insects use a method that creates a spiralling leading edge vortex. [19] [20] Some very small insects use the fling-and-clap or Weis-Fogh mechanism in which the wings clap together above the insect's body and then fling apart. As they fling open, the air gets sucked in and creates a ...
Miniature sensors, a computer chip, and a solar panel were fitted in a "backpack" over the insect's thorax in front of its wings. Light is sent down flexible light-pipes named optrodes [c] from the backpack into the nerve cord to give steering commands to the insect. The result is a "micro-aerial vehicle that's smaller, lighter and stealthier ...
The directional changes are called saccades and typically involve an angle of 90°, being achieved in 50 milliseconds. They are initiated by visual stimuli as the fly observes an object, nerves then activate steering muscles in the thorax that cause a small change in wing stroke which generate sufficient torque to turn.