To no one ’s surprise , those clear shaping protractors we were all learn to use in mark schooling are far from being the most accurate way to measure an angle . They ’re perfect for a class five homework assignment , but in the real macrocosm you ’ll in all likelihood want toopt for this digital alternativethat ’s precise to plus or minus 0.3 degree .
For$20it ’s tinny enough for professional person , students , and anyone who care to putz around with random contraptions on their desk — and on a single cadre - sized stamp battery you’re able to expect to get about 3,000 hours of usance out of it . For anyone not mean to use it as a toy , a locking mechanism keep the ruler at the slant of your choice when draw line , while a set of holes at either remainder lease you hang or anchor it in place for slick measurements . It almost makes me desire to go back to school again . ( Not in a thousand years . )
[ ThinkGeek ]
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