Tonight I went to the Point Mallard trail for a nice evening run. I got home from my business trip at about 3:00 am last night so I've been a little tired today, but this was a nice run. Many thanks to Eric and his family for watching my dog, Abbie while I was gone. I listened to an interesting podcast about a program that blind people can use to see using sound. It utilizes a camera mounted in eyeglasses that a blind person wears. The program converts the camera images to a series of stereo sound sweeps that repeat with a 1 second frequency sweeping from left to right. The pitch indicates the height of the object, the timing in the sweep indicates left to right, and the volume indicates the lightness or darkness. The blind person's brain slowly learns to interpret this audio input as visual information and begins to process the information in the visual cortex, forming images in the brain. Amazing stuff. MRIs of the brains of users verifies that the visual cortex is doing the processing. The other segment was about the history of the polio vaccine in the 50s. In the US we started a clinical trial for the first Polio vaccine but it was halted and shelved when 6 children contracted Polio as a result of the vaccine. The problem was traced to a specific company, Cutter Laboratories, a supplier of the vaccine, and to inactivated virus in their product. The Canadian dept of Health recognized that the problem was something that could be addressed and started their own clinical trials which were successful, and this success was instrumental in the eventual resumption of clincial trials in the US.
| Total Time (h:m:s) |
0:49:08 |
8:05 pace |
| Moving Time (h:m:s) |
0:49:03 |
8:04 pace |
| Distance (mi ) |
6.08 |
| Moving Speed (mph) |
7.4 avg. |
11.0 max. |
| Elevation Gain (ft) |
+102 / -103 |
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| Temperature (°F) |
86.9°F avg. |
89.6°F high |
| Wind Speed ( mph) |
SSW 5.8 avg. |
SSW 6.9 max. |
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