Showing posts from January, 2024

Article - Deep in the Amazon, researchers have uncovered a complex of ancient cities — using laser technology

Deep in the Amazon, researchers have uncovered a complex of ancient cities — using laser technology : > "Wow" was all archaeologist Stéphen Rostain could say when LiDAR (light detection and ranging) laser technology revealed several ancient cities hidden deep in the Amazon rainforest. I keep reading things like this. As technology is developed that can be used to look into the past, we continue to find surprising things about humanity that we previously hadn't considered.  There are discoveries every year that push further back into the past the first use of tools, of agriculture, of large civilizations in areas we thought were populated by hunter gatherers. Is there any way to know how far back we go? How could you possibly know you have found the "earliest" of anything? All you know is it's the oldest thing you've found. And there could be a lot of evidence of previous civilizations and technologies that are simply gone due to the passage of

Bitter cold

It is very, very cold here in Edmonton. Overnight lows will be below -50 Celcius. If you have never experienced cold like this, you will be very, very cold regardless of what you are wearing in a short period of time. That cold stays with you once you are back inside.  Now, consider the fact that there are people in this city living outside in this in tents. The sometimes will have two tents and some tarps over them which creates an insulating layer to trap body heat but we are talking about a cold so deep that best you are going to get in this situation is maybe -15 or -20 in the tent. Then next step is wearing as many clothes as you can get and wrapping in a sleeping bag, probably with your head inside the bag.  And you are still going to be cold.  So spare a thought for them. I am doing some research on the problem of homelessness in Canada. It seems like the public money being spent on this issue is under 5% of what would be needed. It seems like we don't really want to fix thi

Hearing - Eustachian Tube incident

OK, there have been several times in my life where I had a bad cold with a lot of sinus congestion and ended up not being able to hear much out of my right ear. It's like I have an earplug in that ear.  Apparently, this is a result of my Eustachian Tube being blocked. In the past I have coincidentally gone on a trip involving a flight or a drive into the mountains which ended up fixing the issue. This might sound like quite the coincidence but I have had this problem go on for several weeks each time it happened before.  This time, there was no trips planned. I did the usual googling of all the possible treatments. I was massaging below my ear, trying to force air into my sinuses, sipping water while holding my nose, chewing gum, and so on. Nothing worked.  I eventually decided I would try a nasal decongestant. I really don't like them but I did try this eventually and it worked. At the end of the third day (today) the problem cleared up.