tag:blogger.com,1999:blog-31189917.post5321106081347787976..comments2024-03-28T21:04:16.189-07:00Comments on The Blog of Phyz: Space Time Cord-inatesDean Bairdhttp://www.blogger.com/profile/17681829220589441713noreply@blogger.comBlogger4125tag:blogger.com,1999:blog-31189917.post-39821844135274829162016-10-05T08:12:11.530-07:002016-10-05T08:12:11.530-07:00I've been doing a variation of this activity f...I've been doing a variation of this activity for many years--credit to the credential program folks at UCD. I use fairly light weight fishing line and the little pinch-to-open weights. Theoretically this would remove the need for other tools, but pliers are useful, especially after the weights have been around some time. <br /><br />I give them about 3 m of fishing line to start, permission to stand on the desks/lab tables, and the suggestion that they start by putting the second weight 10 cm from the first. (Most groups then proceed to put all their weights 10 cm apart, resulting in a mush of sound, but they soon figure out what to do next.)<br /><br />With the fishing line and weights, once on, positions can be changed by sliding the weights on the string. They need to be careful in handling their strings to prevent tangling. As long as I retain right to final approval, most groups come up with a decent placement by the end and follow up by graphing their results to emphasize the non-linearity.<br /><br />The last few years, some groups have broken out their phones. So far, I've let that happen without formally including it. Some focus on replaying the sound in order to listen repeatedly. Some focus on the visuals, especially effective if they use slo-mo.<br /><br />On the next day, to make sure all have heard the difference, I drop a line where all the spaces are 20 cm and another with the proper spacing.Jessica Downingnoreply@blogger.comtag:blogger.com,1999:blog-31189917.post-31833288692231976282016-09-22T10:23:14.495-07:002016-09-22T10:23:14.495-07:00Great article! Have you heard of TeenLife? They ar...Great article! Have you heard of TeenLife? They are a great directory for afterschool programs that I'm sure your students would be very interested in. Check them out!Anonymoushttps://www.blogger.com/profile/01013920001162146601noreply@blogger.comtag:blogger.com,1999:blog-31189917.post-7059052368362671592016-09-14T04:24:24.385-07:002016-09-14T04:24:24.385-07:00Neat! I like this. I am going to try and adopt thi...Neat! I like this. I am going to try and adopt this to my AP 1 class next week.Brady Sciencehttps://www.blogger.com/profile/14650197401896423161noreply@blogger.comtag:blogger.com,1999:blog-31189917.post-62204381629695535212016-09-13T22:43:50.002-07:002016-09-13T22:43:50.002-07:00I've had success with this using Audacity. Was...I've had success with this using Audacity. Washers hitting the table top gave visible spikes using just a MacBook's built in microphone. Your tin foil plates idea is awesome and should only make it easier for Audacity to pick up.<br /><br />Thanks for reminding me of this one... need to set it up for Friday!Anonymousnoreply@blogger.com