1 Calories Burned For Walking: 4.6 km/h (13 minutes per km). 2  Calories Burned For Walking: 4 km/h (15 minutes per km). 3  Calories Burned For Walking: 3.15 km/h (19 minutes per km).
The first true hypodermic syringe was created by Alexander Wood in 1853. He modified a regular syringe, which at that time was used for treating birthmarks, by adding a needle. He then used this new device for introducing morphine into the skin of patients who suffered from sleeping disorders.
Around 4000 BC Man was using a bronze tool to scratch the surface of a moist clay tablet. 600-1800 AD the Europeans used the quill pen which they used to right on parchment paper. In 1790 the first pencil lead was invented in France and Australia. In 1953 the first inexpensive ball point pen was first mass produced.From 1997 to present day they invented finger pens which were designed to not have to use three fingers to write with.n 1790 the first pencil lead was invented in France and Australia. In 1953 the first inexpensive ball point pen was first mass produced. From 1997 to present day they invented finger pens which were designed to not have to use three fingers to write with.