Petite, stock-straight and nun-like in a high-necked navy dress, Michelle Fairley is brilliantly convincing as eldest sister Kate, a schoolteacher trying desperately to keep the household together even as she realizes that "hair cracks
are appearing everywhere, that control is slipping away..."
Small damage to rims or fine hair cracks
can be acceptable but disfiguring damage will affect value
The research team studied the changes in the hair fiber structure and elasticity as a function of accumulated stress, such as hair cracks
. "We used the Dia-Stron cyclic tester to simulate damage and styling stresses to see the effects of conditioning and to monitor the degradation of elasticity," explained Ms.