Edison recorded his voice by speaking into a mouthpiece. The sound waves vibrated a needle, which made indentations on tinfoil wrapped around a metal cylinder. Edison then played it back by ...

Keeping Toronto neighbourhoods safe is our collective responsibility. Improperly discarded needles and harm reduction supplies found in our communities have been identified as a concern. In an effort ...

Constriction of blood vessels is a physiological response to this type of distress, which in turn disrupts nerve function. The sensation of pins and needles has also been reported to affect the tongue ...

Syringes vary by the amount of insulin they hold and the size of the needle. They’re made of plastic and should be discarded after one use. Insulin is injected subcutaneously, or into the fat ...

The newspaper warned of signs “of a slowing economy” that should have the White House “on alert” and urged the president to nix his tariffs agenda ― which economists warn will send inflation soaring ...

Mathematicians have solved a decades-old problem related to spinning a needle, in what has been hailed as one of the most important mathematical results in recent times. Once seen as “impossible ...