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Mechanical light bulb from 1675 [video]

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Re: Mechanical light bulb from 1675 [video]

#2
for a moment I thought this was going to be about arc-lights in the 1800s that mechanically touch electrodes and then draw apart

* https://en.wikipedia.org/wiki/Arc_lamp

it's amazing how far we've come

think about Benjamin Franklin twenty-five years before Declaration of Independence naming the first "battery" (out of the concept of lined-up artillery) by connecting a series of lynden jars (basically capacitors) - he also invented the concept of +/- positive and negative

now we've got space telescopes and probes leaving the solar system

imagine what's coming in another 300 years

Re: Mechanical light bulb from 1675 [video]

#3
post #2

for a moment I thought this was going to be about arc-lights in the 1800s that mechanically touch electrodes and then draw apart * https://en.wikipedia.org/wiki/Arc_lamp it's amazing how far we've come think about Benjamin Franklin twenty-five years before Declaration of Independence naming the first "battery" (out of the concept of lined-up artillery) by connecting a series of lynden jars (basically capacitors) - he…

> naming the first "battery" (out of the concept of lined-up artillery)

That's an amazing fun fact.

Re: Mechanical light bulb from 1675 [video]

#4
post #2

for a moment I thought this was going to be about arc-lights in the 1800s that mechanically touch electrodes and then draw apart * https://en.wikipedia.org/wiki/Arc_lamp it's amazing how far we've come think about Benjamin Franklin twenty-five years before Declaration of Independence naming the first "battery" (out of the concept of lined-up artillery) by connecting a series of lynden jars (basically capacitors) - he…

> naming the first "battery" (out of the concept of lined-up artillery) That's an amazing fun fact.

Another fun fact is that it was impossible to deduce from any of Ben Franklin's experiments what material was transferred and what material remained in place to give rise to "charge" as we think of it. So he picked a convention that we've continued to use even after we learned that his negative charges were the material that gets transferred by friction.

Re: Mechanical light bulb from 1675 [video]

#5
post #2

for a moment I thought this was going to be about arc-lights in the 1800s that mechanically touch electrodes and then draw apart * https://en.wikipedia.org/wiki/Arc_lamp it's amazing how far we've come think about Benjamin Franklin twenty-five years before Declaration of Independence naming the first "battery" (out of the concept of lined-up artillery) by connecting a series of lynden jars (basically capacitors) - he…

> naming the first "battery" (out of the concept of lined-up artillery) That's an amazing fun fact.

[flagged]

Re: Mechanical light bulb from 1675 [video]

#6
post #2

for a moment I thought this was going to be about arc-lights in the 1800s that mechanically touch electrodes and then draw apart * https://en.wikipedia.org/wiki/Arc_lamp it's amazing how far we've come think about Benjamin Franklin twenty-five years before Declaration of Independence naming the first "battery" (out of the concept of lined-up artillery) by connecting a series of lynden jars (basically capacitors) - he…

Franklin also invented the lightning rod, something which we take for granted these days.

Re: Mechanical light bulb from 1675 [video]

#7
post #5

Earlier quoted context omitted.

> naming the first "battery" (out of the concept of lined-up artillery) That's an amazing fun fact.

[flagged]

People are better judged by the mores of their time, not our time.

Besides, without Franklin, there would be no United States, the free-est country in history.

Re: Mechanical light bulb from 1675 [video]

#8
post #5

Earlier quoted context omitted.

> naming the first "battery" (out of the concept of lined-up artillery) That's an amazing fun fact.

[flagged]

> but it must be said, as genius as Franklin was, sadly ..

Some people can't help themselves from bringing irrelevant facts to the conversation.

Re: Mechanical light bulb from 1675 [video]

#9
post #5

Earlier quoted context omitted.

[flagged]

People are better judged by the mores of their time, not our time. Besides, without Franklin, there would be no United States, the free-est country in history.

Yeah no, Norway and a few others are the free-est country in history, just because someone declares US is "free" doesn't make it true, we disappear citizens all the time, police can seize your property without cause, government can seize your land for datacenters and women lose more and more rights every year

Again, Franklin knew slavery was wrong, literally campaigned to end it for that reason, yet did it himself for decades in the meanwhile, not a difficult horror to grasp in any time

Re: Mechanical light bulb from 1675 [video]

#10
post #5

Earlier quoted context omitted.

[flagged]

People are better judged by the mores of their time, not our time. Besides, without Franklin, there would be no United States, the free-est country in history.

Plenty of people at the time thought slavery was evil. Franklin was even one of them, calling it "cancer." He said this while still owning slaves, which is rather peculiar, but people are complicated.
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