Learn how to convert cm2 to m2 (square centimeters to square meters) and back again with these two example problems.
Monthly Archives: January 2018
January 17 marks the passing of two people, William Pickering and Clyde Tombaugh, who was important to the discovery of the dwarf planet, Pluto. William Pickering was an American astronomer known for opening new observatories and research stations. He also believed there should be a planet outside the orbit of […]
Today in Science History – January 17 – Pluto
January 16 marks the death of Nicolas Leblanc. Leblanc was a French physician and amateur chemist who developed a method to convert common salt (sodium chloride) into soda ash (sodium carbonate). Soda ash was an important industrial chemical in Renaissance Europe. It was used in the production of several products, […]
Today in Science History – January 16 – Nicolas Leblanc ...
January 15 is Artturi Ilmari Virtanen’s birthday. Virtanen was a Finnish biochemist who invented the AIV (his initials) fodder technique to prevent spoilage in stored green silage. Storing green plant fodder during long winters was always difficult since, by the end of winter, the fodder would ferment and be rendered […]
Today in Science History – January 15 – Artturi Ilmari ...
January 14 marks the passing of Cato Guldberg. Guldberg was a Norwegian chemist and mathematician who, with his brother-in-law, Peter Waage discovered the chemistry law of mass action. The law of mass action relates the rate a chemical reaction progresses to the concentrations of the reactants. Up to this point, […]
Today in Science History – January 14 – Cato Guldberg ...
January 13 marks the passing of Paul Niggli. Niggli was a Swiss mineralogist who was a pioneer of x-ray crystallography. Niggli developed the mathematical system of space groups that defined 230 different 3-D atom arrangements based on x-ray diffraction patterns. X-ray crystallography works by shining x-ray radiation through a crystal […]
Today in Science History – January 13 – Paul Niggli ...
Do you admire the simple elegance of dry flowers? Here’s a science experiment that makes use of those little packets that say “Do No Eat” you find with shoes, electronics, and other products. The packets contain silica gel beads, which are silicon dioxide (sand) with a porous surface. The pores […]
Dry Flowers Using Silica Gel Beads – Fun Desiccant Science ...
January 12 is Johan August Arfwedson’s birthday. Arfwedson was a Swedish chemist who discovered the element lithium. Arfwedson was from a wealthy family and matriculated early from Uppsala University where he earned both a Law degree and a degree in mineralogy. The law degree allowed him to manage his family’s […]
Today in Science History – January 12 – Johan August ...
This periodic table wallpaper has each element as a stack of button disks to make a button periodic table wallpaper. This 4K (3840 × 2160) high-quality wallpaper contains all 118 elements’ atomic number, symbol, name, and atomic mass. The colored borders of each disk correspond to the different element groups with a […]