Who Invented The Piano And When

Bartolomeo Cristofori Invented The Piano The Piano was invented in 1688  A piano is a large keyboard musical instrument with a wooden case enclosing a soundboard and metal strings, which are struck by hammers when the keys are depressed. The strings’ vibration is stopped by dampers when the keys are released and can be regulated for […]

Who Invented Light Bulb And When

Thomas Alva Edison Invented Light Bulb Light Bulb was invented in 1879 Light Bulb is a glass bulb inserted into a lamp or a socket in a ceiling, which provides light by passing an electric current through a filament or a pocket of inert gas.

Who Invented L’hopital’s Rule And When

Guillaume Invented L’hopital’s Rule L’hopital’s Rule was invented in 1694 L’hopital’s Rule is used to evaluate indeterminate forms of limits. It states that for indeterminate functions/forms (forms where the limits tend to 0/0 or +− ∞/∞), the limit of that form equals the limit of its derivatives.

Who Invented The Microscope And When

Zacharias Janssen Invented The Microscope The Microscope was invented in 1590 A microscope is an instrument used to see objects that are too small to be seen by the naked eye. Microscopy is the science of investigating small objects and structures using such an instrument

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