In 1982, Dan Shechtman discovered the impossible, till then, quasiperiodic crystal structure characterized by a fivefold symmetry in contrast to the then prevailing classical crystallographic restriction theorem stating that a crystal can possess only two, three, four, and six-fold rotational symmetries. For this discovery Dan Shechtman was awarded the 2011 Nobel Prize in Chemistry.
- Wikipedia
Science Fair Project Information
Title: In Which Temperature Do Crystals Grow Best?
Subject: Chemistry
Grade level: Elementary School, Grades 4-6
Academic Level: Ordinary
Project Type: Experimental
Cost: Low
Affiliation: Selah Junior High School
Year: 2000
Description: Crystals were grown in same size beakers and other conditions maintained the same for all experimental groups besides the temperature of the crystal growth environment (hot, cold, room temperature); after three days crystal growth was compared, graphed and tabulated.
Link: http://www.selah.k12.wa.us/SOAR/SciProj2000/KaitlynS.html
- Wikipedia
Science Fair Project Information
Title: In Which Temperature Do Crystals Grow Best?
Subject: Chemistry
Grade level: Elementary School, Grades 4-6
Academic Level: Ordinary
Project Type: Experimental
Cost: Low
Affiliation: Selah Junior High School
Year: 2000
Description: Crystals were grown in same size beakers and other conditions maintained the same for all experimental groups besides the temperature of the crystal growth environment (hot, cold, room temperature); after three days crystal growth was compared, graphed and tabulated.
Link: http://www.selah.k12.wa.us/SOAR/SciProj2000/KaitlynS.html