journal of the medical library association : jmla1990Vol. 8pp. 142-143
131
r.1990tropiculturaa
Abstract
ILCA scientists in Kaduna, Nigeria, have designed a portable cattle race using only scrap material from building sites. An electronic weighing apparate is adopted consisting of a wooden platform positioned across two metal beams each containing two load cells which respond to pressure by varying electrical resistance, power being supplied by an ordinary car battery.