Whiskers of a good friend

Tin Whiskers Remain A Concern

The elimination of lead in electronic equipment due to governmental regulations (European Union End of Life Vehicle Directive and European Union Restriction of Hazardous Substances Directive) has increased the risk of electrical shorting due to the formation of tin whiskers in electronic products. Tin whiskers are hair-like tin structures that grow sporadically on surfaces coated with tin. Whis...

Value of a friend, a friend of your friend, and a friend of the friend of your friend: Social discounting in n degrees of separation

Jones and Rachlin (2008) found that the amount of money a person is willing to forgo in order to give $75 to another person decreased as a hyperbolic function of perceived social distance, in the same way as occurs in intertemporal choice. This study aimed to extend this finding to the domain of social networks, in which social distance is defined by degrees of separation. A total of 334 partic...

john steinbeck: friend of the american common man

in his last years of life americans had almost forgotton steinbeck, and those who had not, occasionally criticized him for supporting and praising the u. s. military intervention in the vietnam war. althought ateinbeck incorporates different themes into his works, each one bears many signs of his concern and sympathy for america and the american common people in particular. steinbecks to a god ...

Characterization of an ectopic β -globin LCR Good neighbors and a distant friend

Classroom Note: What Makes a Good Friend? The Mathematics of Rock Climbing

The shape of the cams used in rock climbing friends is derived using a linear system of differential equations.