div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imagea href=https:reader042fdocumentsinreader042viewer20220308025b0b296e7f8b9adc138d65edhtml5page1jpg target=_blank img data-url=document-if-two-out-of-round-surfaces-rub-together-in-a-regular-fashion-over-a-period-ofhtmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: If two out-of-round surfaces rub together in a regular fashion over a period of time the high points will tend to wear down and the surfaces will tend toward surfaces of revolution loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader042fdocumentsinreader042viewer20220308025b0b296e7f8b9adc138d65edhtml5thumbnails1jpg width=140 height=200 adivdivdiv class=trans-pagebutton class=gotoPage data-page=2Page 2button div class=trans-imagea href=https:reader042fdocumentsinreader042viewer20220308025b0b296e7f8b9adc138d65edhtml5page2jpg target=_blank img data-url=document-if-two-out-of-round-surfaces-rub-together-in-a-regular-fashion-over-a-period-ofhtmlpage=2 data-page=2 class=trans-thumb lazyload alt=Page 2: If two out-of-round surfaces rub together in a regular fashion over a period of time the high points will tend to wear down and the surfaces will tend toward surfaces of revolution loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader042fdocumentsinreader042viewer20220308025b0b296e7f8b9adc138d65edhtml5thumbnails2jpg width=140 height=200 adivdivdiv class=trans-pagebutton class=gotoPage data-page=3Page 3button div class=trans-imagea href=https:reader042fdocumentsinreader042viewer20220308025b0b296e7f8b9adc138d65edhtml5page3jpg target=_blank img data-url=document-if-two-out-of-round-surfaces-rub-together-in-a-regular-fashion-over-a-period-ofhtmlpage=3 data-page=3 class=trans-thumb lazyload alt=Page 3: If two out-of-round surfaces...