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Fly capture tape. Flypaper (also known as a fly ribbon, fly strip, fly capture tape, or fly catcher) is a fly-killing device made of paper coated with a sweetly fragrant, but extremely sticky and sometimes poisonous substance that traps flies and other flying insects when they land upon it.
Unusually shaped fruits and vegetables have shapes that are not in line with their normal body plans. While some examples are just oddly shaped, others are heralded for their amusing appearance, often because they resemble a body part such as the buttocks or genitalia. Pareidolia, the tendency to mistakenly see a face in an object or visual ...
Fruit tree pollination. A European honey bee pollinates a peach flower while collecting nectar. Pollination of fruit trees is required to produce seeds with surrounding fruit. It is the process of moving pollen from the anther to the stigma, either in the same flower or in another flower. Some tree species, including many fruit trees, do not ...
The Feit–Thompson theorem can be thought of as the next step in this process: they show that there is no non-cyclic simple group of odd order such that every proper subgroup is solvable. This proves that every finite group of odd order is solvable, as a minimal counterexample must be a simple group such that every proper subgroup is solvable.
In mathematics, when X is a finite set with at least two elements, the permutations of X (i.e. the bijective functions from X to X) fall into two classes of equal size: the even permutations and the odd permutations. If any total ordering of X is fixed, the parity (oddness or evenness) of a permutation of X can be defined as the parity of the ...
In mathematics, parity is the property of an integer of whether it is even or odd. An integer is even if it is divisible by 2, and odd if it is not. [1] For example, −4, 0, and 82 are even numbers, while −3, 5, 7, and 21 are odd numbers. The above definition of parity applies only to integer numbers, hence it cannot be applied to numbers ...
Odds and evens. Odds and evens may refer to: Odds and evens (hand game), a two-player guessing game using fingers. Odds and evens (patience), a solitaire variant of the card game Royal Cotillion. Odds and Evens (film), a 1978 Italian action-comedy movie. Parity (mathematics), the concept of odd and even integers.
Optical interleaver. An optical interleaver is a 3-port passive fiber-optic device that is used to combine (Mux) two sets of dense wavelength-division multiplexing (DWDM) channels ( odd and even channels) into a composite signal stream in an interleaving way. For example, optical interleaver takes two multiplexed signals with 100 GHz spacing ...