The world’s longest running science experiment

Pitch Drop Scientist Remembered For Record-Setting Experiment
August 27, 2013
http://www.npr.org/templates/story/story.php?storyId=216191864

Science professor John Mainstone died over the weekend at age 78.
The Australian was overseer of what is said to be the world’s longest running physics experiment.
It was a flask with “pitch” or tar set up to allow it to “drip” — but very slowly.
In 87 years only a handful of drops have fallen.
The test was to prove that pitch was actually a liquid not a solid, although it shattered like a solid.

Smart glass blocks heat or light at flick of a switch

Smart glass blocks heat or light at flick of a switch
Spray-on coating is a step towards energy-efficient windows.
14 August 2013
http://www.nature.com/news/smart-glass-blocks-heat-or-light-at-flick-of-a-switch-1.13558

Scientists Reach Milestone In Quest For Smart Windows
August 15, 2013
http://www.npr.org/2013/08/15/211976401/scientists-reach-milestone-in-quest-for-smart-windows

Smart windows change how much sunlight they let through on a hot day. Such windows could reduce the demand for energy by reducing the need for air conditioning.

At the Lawrence Berkeley Laboratory in California, Delia Milliron and her colleagues have been making microscopic crystals called nanocrystals out of indium and tin. As they report in today’s issue of the journal Nature, when you impregnate a special glass with these nanocrystals, you get a window that can block either the warming rays from the sun or the light rays from the sun, or both.

Introduction to Materials and Processes

http://www.ndt-ed.org/EducationResources/CommunityCollege/Materials/cc_mat_index.htm

Structure of Materials
Crystal Defects
Linear Defects – Dislocations

Physical and Chemical Properties

Phase Transformation Temperatures
Density
Specific Gravity
Thermal Conductivity
Thermal Expansion
Electrical Conductivity
Magnetic Properties
Oxidation and Corrosion

Mechanical Properties
– Loading
– Stress & Strain
Tensile properties
Compression, Bearing, & Shear Hardness
Creep & Stress Rupture
Toughness
– Impact Toughness
– Notch Toughness
– Fracture Toughness
Fatigue
– S-N Fatigue
– Fatigue Crack Growth Rate