Who invented the watermark pen?

Who invented the watermark pen? Lewis Waterman Is Waterman French or American? Waterman Pen Company Type Subsidiary Industry Writing instruments Founded 1884 in New York, U.S. Founder Lewis Waterman Headquarters Paris , France Who is the father of fountain pen? Petrache PoenaruRobert William Thomson What kind of pen do you dip in ink? A dip […]

What is Kashan famous for?

What is Kashan famous for? Kashan is also famous for the production of rosewater that has been produced in this region for more than 2500 years. Near Fin garden and the Tabatabei house you can visit a rose-water factory where the rose-water is produced. The entrance is free. Insider tip: Kashan is the best place […]

Why is facilitated diffusion a passive transport?

Why is facilitated diffusion a passive transport? Even though facilitated diffusion involves transport proteins (and is essentially a transport process), it can still be considered passive transport because the solute is moving down the concentration gradient, and no input of energy is required. Instead, they diffuse across the membrane through transport proteins. Is facilitated transport […]

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