| Time | Engine | Last 20 Search Engines |
| 23-May-2013 00:48:06 | Google | http://www.google.com/url?sa=t&rct=j&q=longitudinal%20waves%20simulation&source=web&cd=2&ved=0CDAQ |
| 23-May-2013 00:48:10 | Yahoo | http://hk.search.yahoo.com/search?p=interference of wave&fr=FP-tab-web-t&ei=UTF-8&meta=rst%3Dhk |
| 23-May-2013 00:57:20 | Google | http://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2&ved=0CDMQFjAB&url=http%3A%2F%2Fwww. |
| 23-May-2013 01:00:49 | Google | http://www.google.com/url?sa=t&rct=j&q=compression%20wave%20simulation&source=web&cd=2&sqi=2&ved=0 |
| 23-May-2013 13:13:28 | Yahoo | http://hk.search.yahoo.com/search?p=%E7%89%9B%E9%A0%93%E7%AC%AC%E4%B8%80%E5%AE%9A%E5%BE%8B&fr=FP-t |
| 23-May-2013 16:12:12 | Yahoo | http://hk.search.yahoo.com/search;_ylt=A2oKmKtGz51RD2kAKCyzygt.?ei=UTF-8&meta=rst%3Dhk&fr=fp-handw |
| 23-May-2013 22:09:10 | Yahoo | http://hk.search.yahoo.com/mobile/s?ei=UTF-8&_tsrc=apple&r=web_filter&fr2=p&p=al 2003 30 phy |
| 23-May-2013 22:15:29 | Yahoo | http://tw.myblog.yahoo.com/gtt-1/article?mid=3975 |
| 23-May-2013 23:06:57 | Yahoo | http://hk.search.yahoo.com/search;_ylt=A2oKmKl6MJ5R5TwAbsqzygt.?p=2000%20al%20phy%20answer&fr2=sg- |
| 23-May-2013 23:13:06 | Yahoo | http://tw.search.yahoo.com/search;_ylt=A8tUwYf5MZ5R6xQA9RFr1gt.;_ylc=X1MDMjExNDcwNTAwMwRfcgMyBGFvA |
| 24-May-2013 00:02:42 | Yahoo | http://tw.search.yahoo.com/search?p=%E7%89%9B%E9%A0%93%E7%AC%AC%E4%B8%80%E5%AE%9A%E5%BE%8B&fr=yfp& |
| 24-May-2013 01:21:36 | Google | http://www.google.com/url?sa=t&rct=j&q=lens%20effects&source=web&cd=46&cad=rja&ved=0CEYQFjAFOCg&ur |
| 24-May-2013 04:49:30 | Google | http://www.google.com/url?sa=t&rct=j&q=&esrc=s&frm=1&source=web&cd=10&sqi=2&ved=0CH4QFjAJ&url=http |
| 24-May-2013 14:24:11 | Google | http://www.google.com/url?sa=t&rct=j&q=transverse%20wave%20animation&source=web&cd=5&ved=0CEQQFjAE |
| 24-May-2013 19:54:17 | Yahoo | http://hk.search.yahoo.com/search;_ylt=A2oKmK1IU59RBxcAtA2zygt.?p=phase%20difference&fr2=sb-top&fr |
| 24-May-2013 21:00:08 | Yahoo | http://hk.search.yahoo.com/search?p=PHY AL MC&fr=FP-tab-web-t&ei=UTF-8&meta=rst%3Dhk |
| 25-May-2013 08:59:37 | Yahoo | http://hk.search.yahoo.com/mobile/s?ei=UTF-8&n=10&meta=rst%3Dhk&r=web_filter&fr2=p&p=%E7%89%A9%E7% |
| 25-May-2013 10:50:56 | Yahoo | http://hk.search.yahoo.com/search;_ylt=A2oKmLn5JqBRLnoA5jizygt.?p=%E7%89%A9%E7%90%86&fr2=sb-top&fr |
| 25-May-2013 12:13:00 | Yahoo | http://tw.search.yahoo.com/search;_ylt=A8tUwZISOqBRIVQAgVJr1gt.;_ylc=X1MDMjExNDcwNTAwMwRfcgMyBGFvA |
| 25-May-2013 13:09:18 | Yahoo | http://hk.search.yahoo.com/search;_ylt=A2oKmJQ6R6BRpS8AYEyzygt.?p=DIPPER%20VIBRATE%20IN%20ANTIPHAS |