John Adams
The science of government it is my duty to study, more than all other
sciences; the arts of legislation and administration and negotiation ought
to take the place of, indeed exclude, in a manner, all other arts. I must
study politics and war, that our sons may have liberty to study mathematics
and philosophy. Our sons ought to study mathematics and philosophy,
geography, natural history and naval architecture, navigation,
commerce and agriculture in order to give their children a right to study
painting, poetry, music, architecture, statuary, tapestry and porcelain.
Letter to Abigail Adams (12 May 1780)
A team of researchers led by engineers from Penn
State University has created the first material that heals itself in the
presence of water, according to a study published yesterday in Scientific Reports.
The material, inspired by squid teeth, could be used to repair devices
in water-filled environments that are difficult to access, such as the
human body, or the bottom of the sea.
The researchers had been studying squids' ring
teeth, which are uniquely strong and can change phase from liquid to
solid in the presence of water. After testing ring teeth samples from
several species of squid found all over the world, the researchers
uncovered the genetic code for the proteins that allow the teeth to heal
themselves when broken. They then engineered bacteria to produce the
proteins so they could conduct more tests.
