Monthly Archives: September 2015






Using wedge and dash notation, solid lines (sticks) represent chemical bonds in the plane of the surface. Black wedges represent chemical bonds coming toward you, while dashed lines are for bonds that extend back behind the surface.
The wedge and dash notation is used to represent three-dimensional structures of molecules using a two-dimensional surface, like a sheet of paper or a computer screen. This type of structure is also called wedge-dash notation or wedges and dash notation. It is commonly used in organic chemistry, though you may […]

Wedge and Dash Notation for 3D Chemical Structures


This man let bees sting him on his private parts for science! 3
For the past 25 years, the Ig Nobel Prize has recognized scientific research that makes you laugh and then makes you think. The 2015 Ig Nobel prize includes an award, a piece of paper signed by actual Nobel laureates, and a cash award of 10 trillion dollars (Zimbabwe currency). The […]

2015 Ig Nobel Prize Winners


This is a collection of periodic table of elements HD. These high definition images print and resize cleanly. Note you can find many more HD periodic tables in our printable table collection. Click the link for the specific periodic table if you want a black background, other color options, or […]

Periodic Table of Elements HD