tag:blogger.com,1999:blog-84989636488630225462011-07-09T01:02:00.500+09:00dracyhttp://www.blogger.com/profile/11219979469372338413noreply@blogger.comBlogger21100tag:blogger.com,1999:blog-8498963648863022546.post-7041756572016965462009-08-31T18:09:00.007+09:002009-09-01T12:35:29.725+09:00<a href="http://1.bp.blogspot.com/_u-8csxFkdbU/SpuUyK9Dm0I/AAAAAAAAACk/GauwOvhvYJA/s1600-h/sin+last+-3.jpeg"><img id="BLOGGER_PHOTO_ID_5376054169851632450" style="DISPLAY: block; MARGIN: 0px auto 10px; WIDTH: 320px; CURSOR: hand; HEIGHT: 229px; TEXT-ALIGN: center" alt="" src="http://1.bp.blogspot.com/_u-8csxFkdbU/SpuUyK9Dm0I/AAAAAAAAACk/GauwOvhvYJA/s320/sin+last+-3.jpeg" border="0" /></a><br />I measured the length of the reduced model.<br /><br /><div><a href="http://1.bp.blogspot.com/_u-8csxFkdbU/SpuUc5C4R_I/AAAAAAAAACc/5F78i_DdOpc/s1600-h/sin+last+-2.jpeg"><img id="BLOGGER_PHOTO_ID_5376053804266964978" style="DISPLAY: block; MARGIN: 0px auto 10px; WIDTH: 320px; CURSOR: hand; HEIGHT: 229px; TEXT-ALIGN: center" alt="" src="http://1.bp.blogspot.com/_u-8csxFkdbU/SpuUc5C4R_I/AAAAAAAAACc/5F78i_DdOpc/s320/sin+last+-2.jpeg" border="0" /></a></div><div></div><div>And the real length.</div><div><br /></div><div><a href="http://4.bp.blogspot.com/_u-8csxFkdbU/SpuUCO9O1II/AAAAAAAAACU/ybufz3E5RAg/s1600-h/sin+last+-1.jpeg"><img id="BLOGGER_PHOTO_ID_5376053346292388994" style="DISPLAY: block; MARGIN: 0px auto 10px; WIDTH: 320px; CURSOR: hand; HEIGHT: 229px; TEXT-ALIGN: center" alt="" src="http://4.bp.blogspot.com/_u-8csxFkdbU/SpuUCO9O1II/AAAAAAAAACU/ybufz3E5RAg/s320/sin+last+-1.jpeg" border="0" /></a></div><div></div><div>I got the target length by using the proportion.</div><div>But is it troublesome to make the reduced model every time?</div><div><br /></div><div><a href="http://2.bp.blogspot.com/_u-8csxFkdbU/SpuTlQW7DyI/AAAAAAAAACM/J1sUdq384Ho/s1600-h/sin+0008.jpeg"><img id="BLOGGER_PHOTO_ID_5376052848452374306" style="DISPLAY: block; MARGIN: 0px auto 10px; WIDTH: 320px; CURSOR: hand; HEIGHT: 229px; TEXT-ALIGN: center" alt="" src="http://2.bp.blogspot.com/_u-8csxFkdbU/SpuTlQW7DyI/AAAAAAAAACM/J1sUdq384Ho/s320/sin+0008.jpeg" border="0" /></a></div><div></div><div>So I calculated the target length by using cos table.</div><div><br /></div><div><a href="http://4.bp.blogspot.com/_u-8csxFkdbU/SpuTd-rHxKI/AAAAAAAAACE/BPea6bec2BA/s1600-h/sin+last.jpeg"><img id="BLOGGER_PHOTO_ID_5376052723446170786" style="DISPLAY: block; MARGIN: 0px auto 10px; WIDTH: 320px; CURSOR: hand; HEIGHT: 229px; TEXT-ALIGN: center" alt="" src="http://4.bp.blogspot.com/_u-8csxFkdbU/SpuTd-rHxKI/AAAAAAAAACE/BPea6bec2BA/s320/sin+last.jpeg" border="0" /></a><br />This is how I got the target length:)<br /><br /><br /><br /><div></div></div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/8498963648863022546-704175657201696546?l=dracyscripts.blogspot.com' alt='' /></div>dracyhttp://www.blogger.com/profile/11219979469372338413noreply@blogger.com0tag:blogger.com,1999:blog-8498963648863022546.post-17064932078243911552009-08-31T08:34:00.009+09:002009-09-01T12:34:55.413+09:00<a href="http://1.bp.blogspot.com/_u-8csxFkdbU/SpsNSoFhHFI/AAAAAAAAAB8/r9Tzthapy_M/s1600-h/I+am+Oweny.jpeg"><img id="BLOGGER_PHOTO_ID_5375905193846185042" style="DISPLAY: block; MARGIN: 0px auto 10px; WIDTH: 320px; CURSOR: hand; HEIGHT: 229px; TEXT-ALIGN: center" alt="" src="http://1.bp.blogspot.com/_u-8csxFkdbU/SpsNSoFhHFI/AAAAAAAAAB8/r9Tzthapy_M/s320/I+am+Oweny.jpeg" border="0" /></a>Hello. I am a math tutor.<br />Do you think it is possible to learn math in SL?<br /><br />Today I will experiment how to know the distance between 2 spots which I cannot measure directly.<br /><br /><a href="http://3.bp.blogspot.com/_u-8csxFkdbU/SpsNMoc3uxI/AAAAAAAAAB0/usG0nVNyWGA/s1600-h/sin+0001.jpeg"><img id="BLOGGER_PHOTO_ID_5375905090864921362" style="DISPLAY: block; MARGIN: 0px auto 10px; WIDTH: 320px; CURSOR: hand; HEIGHT: 229px; TEXT-ALIGN: center" alt="" src="http://3.bp.blogspot.com/_u-8csxFkdbU/SpsNMoc3uxI/AAAAAAAAAB0/usG0nVNyWGA/s320/sin+0001.jpeg" border="0" /></a>This is a model.<br />I cannot walk straight between these spots.<br /><br /><div><a href="http://3.bp.blogspot.com/_u-8csxFkdbU/SpsNEdzE1rI/AAAAAAAAABs/pOvli0GRko8/s1600-h/sin+0002.jpeg"><img id="BLOGGER_PHOTO_ID_5375904950566311602" style="DISPLAY: block; MARGIN: 0px auto 10px; WIDTH: 320px; CURSOR: hand; HEIGHT: 229px; TEXT-ALIGN: center" alt="" src="http://3.bp.blogspot.com/_u-8csxFkdbU/SpsNEdzE1rI/AAAAAAAAABs/pOvli0GRko8/s320/sin+0002.jpeg" border="0" /></a><br />This tool is DDB (Dracy Drawing Board). </div><div>I set the picture to it.</div><div><br /></div><div><div><a href="http://2.bp.blogspot.com/_u-8csxFkdbU/SpsM-WeT-0I/AAAAAAAAABk/KNPWDsmgavg/s1600-h/sin+0003.jpeg"><img id="BLOGGER_PHOTO_ID_5375904845520960322" style="DISPLAY: block; MARGIN: 0px auto 10px; WIDTH: 320px; CURSOR: hand; HEIGHT: 229px; TEXT-ALIGN: center" alt="" src="http://2.bp.blogspot.com/_u-8csxFkdbU/SpsM-WeT-0I/AAAAAAAAABk/KNPWDsmgavg/s320/sin+0003.jpeg" border="0" /></a><br />I drew 3 lines.<br /><br /><br /><div><a href="http://2.bp.blogspot.com/_u-8csxFkdbU/SpsM3PzkL-I/AAAAAAAAABc/ejOIvrTsMKU/s1600-h/sin+0004.jpeg"><img id="BLOGGER_PHOTO_ID_5375904723471970274" style="DISPLAY: block; MARGIN: 0px auto 10px; WIDTH: 320px; CURSOR: hand; HEIGHT: 229px; TEXT-ALIGN: center" alt="" src="http://2.bp.blogspot.com/_u-8csxFkdbU/SpsM3PzkL-I/AAAAAAAAABc/ejOIvrTsMKU/s320/sin+0004.jpeg" border="0" /></a><br />I changed the background texture, moved the lines to fit the scale and measured the angles.</div><div>And I was able to know the target distance. </div><div></div><div>Do you want to know how I did?</div><div></div><div><br /><br /></div><div></div></div></div><div class="blogger-post-footer"><img width='1' height='1' src='https://blogger.googleusercontent.com/tracker/8498963648863022546-1706493207824391155?l=dracyscripts.blogspot.com' alt='' /></div>dracyhttp://www.blogger.com/profile/11219979469372338413noreply@blogger.com0