Thursday, October 01, 2020

 

BioChem Wk4: 5G what else

 

5G was a popular topic of discussion today.  I think both groups pointed out different concerns and aspects of impacts from 5G.  For our group, we felt that we need more concrete studies and reports.  Also, there should be an awareness of the source of the reports as often the objectivity of the reports is in question.

 

In one way, it is relevant to discuss potential health impact of 5G and the pro and con.  On the other hand, quite a few Asian countries already roll out 5G for five or more years ago.  There are advantages of 5G as one can see in these Asian countries.  It would be interesting to see if we are able to collect data or analysis of 5G’s health impact in Asia. 

 

We also think that it might take decades or more before we can fully understand the impact of 5G.  but, from now to 10 years, different technology will emerge. Should we wait or should we embrace?  a true dilemma!


 

BioChem Wk4: phasing out of gas vehicle

 

I think conceptually sounds like a good idea, but I would like to see more factual data to support such decisions. According to some mechanical engineers, some challenges of electric powered vehicle is its limit on horsepower and battery sensitivities.  In other words, most electric vehicle cannot produce the initial torque nor has the horsepower comparing to a 6-cylinder gasoline vehicle.  This is going to present huge challenge for any truck owner or rely a truck to pull, toll, transport materials.  When one is loading heavy items on an electrical truck, it might have not only a speed issues and ability to drive uphill.

 

Secondly, the battery has issues at cold weather that it drains much faster when the temperature dip like during the winter season at the Sierra Foothill or Lake Tahoe areas.  There are many incidences of hybrid vehicle battery quickly drained empty during the snow seasons at Lake Tahoe so that they got stuck in the snow.

 

Third, the electric rechargeable battery for automobile are so expensive. If there is no sufficient warranty or technology breakthrough that more batter juice is able to generate and storage, the replacement battery are hefty in price.

 

Fourth, the price of hybrid or fully electrical vehicles like Tesla are quite expensive and can be out of the budget for most people.  This really limit the affordability of the lower- and middle-class people!

 

Thus, there are a lot to consider.

 


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