Battery tech has improved, those were NiCad
But the real improvement is the shrinking surface mount large scale integration chips, using micro amp of power, and the proliferation of cell towers, were a phone can connect using milliwatts of RF, instead of needing 3 watts of transmit power
Kayteg1 wrote:
Searching_Ut wrote:
If you want some interesting reading, look back through popular science magazines for the last hundred years or so and see how often articles pop up regarding how new tech should allow us to power everything by solar in the next 10 years or so. The articles from the 1800's read very similar to todays articles.
You kidding, right?
It is not the solar that is the main problem, but power storage for the time when sun is out, so most of the issues oscillate around batteries.
I had first flip cellphone that hit market 23 years ago (bought it when my wife was pregnant, so remember it quite precisely)
The extended use battery was about 2 lb and about 2" thick. Even my contractor's pants had hard time to hold it.
The battery would power the phone for 12 hr before it needed recharge.
Today my newer cellphone has battery smaller than credit card and powers my phone for 10 days without turning off for the night.
