Dale's Daily

Thursday, September 22, 2011 Lethbridge

6:30 am

The temperature is +16 C, with a high predicted of +28 C. From the Environment Canada website: Today Mainly sunny. Becoming mainly cloudy this morning. Clearing this afternoon. Wind west 30 km/h gusting to 50. High 28. UV index 4 or moderate. Tonight Clear. Wind west 30 km/h gusting to 50. Low 12. Normals Max: 18°C Min: 4°C.

11:00 am Geocaching

I prepared a list of 5 geocaches in Lethbridge for searching. At the end of the trip I had found 4 and failed to find one, which I think may well be missing. I have sent an email to the owner of that cache asking him to check and verify that the container is still where he placed it.

The cache I created yesterday was "published" this morning and was almost immediately found by two local geocachers who often compete to see who can be the "first to find" (FTF).

9:00 PM Science

I have reread a book on the formation of the universe that I first read almost 20 years ago ("Deep Time" by David Darling). Some of the fine detail may be different today but the overall view still seems valid. The basic assumption is that of a "big bang". This is based on the observation that everything in the universe is moving away from everything else.

The other basis for speculation about the universe is what we seem to know about atomic structure. This quickly gets into the realm of quantum physics as well as Einstein's theory of general relativity. Thus the idea is to think of a way that this atomic structure could be created. What is not discussed in Darling's book is the fundamental incompatibility between quantum and relativity theories. On the other hand Darling also looks into the future of the universe - trillions and trillions and trillions of years into the future. Highly speculative, but still based on what science we know at the moment.

Darling      Darling