How is CFL number calculated?

How is CFL number calculated? What is a Courant number? The Courant number in one-dimension is defined as C ≡ u∆t ∆x where u is the characteristic wave speed of the system, ∆t is the time-step of the numerical model, and ∆x is the spacing of the grid in the numerical model. What is CFL […]

Can fleas be mistaken for lice?

Can fleas be mistaken for lice? A flea infestation can easily be confused for a lice infestation. Fleas are pests which do affect dogs, and they infest homes and yards quickly. Fleas, like lice, can bite humans, as well. If your pet shows signs of excessive itching or restlessness, he or she may be harboring […]

How does bug spray kill?

How does bug spray kill? That means bug spray doesn’t kill bugs, it just keeps them away from you. Most bug sprays accomplish this goal primarily by disguising your scent. Your body naturally produces carbon dioxide through your breath, pores, and sweat. How do pesticides kill pests? Insecticides are used to control insects. Mothballs are […]

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