>On 2018-04-02, krw@notreal.com <krw@notreal.com> wrote:
>> On Mon, 2 Apr 2018 00:01:31 -0000 (UTC), Jasen Betts
>><jasen@xnet.co.nz> wrote:
>>
>>>On 2018-04-01, krw@notreal.com <krw@notreal.com> wrote:
>>>> On Sun, 1 Apr 2018 13:15:04 -0000 (UTC), Cursitor Doom
>>>><curd@notformail.com> wrote:
>>>>
>>>>>On Sun, 01 Apr 2018 06:57:13 +0000, John Doe wrote:
>>>>>
>>>>>> I am not planning to do so, just curious...
>>>>>>
>>>>>> Using a five amp hour 18 V (20 V Max) battery.
>>>>>>
>>>>>> At 1 million V, that would be somewhere around 3 A for one second?
>>>>>>
>>>>>> Sounds like a LOT of energy.
>>>>>>
>>>>>> Thanks.
>>>>>
>>>>>That does make an excellent power source for this sort of application.
>>>>>Enough to make a terrifying statement, anyway! Assuming you're not into
>>>>>torture and planning on using this for extended periods of course....
>>>>>;-)
>>>>
>>>> I'd like to see a chemical battery that can produce 3600C.
>>>
>>>You'll probably find some in the supermarket.
>>>AA cells capable of twice that are nothing special
>>
>> 7KA from an AA cell? Get real!
>
>3600 Coulombs
>
>wrong "C"
Indeed. The issue is to get the battery's energy out of the thing in
one second.
Reply by Martin Brown●April 3, 20182018-04-03
On 01/04/2018 22:26, krw@notreal.com wrote:
> On Sun, 1 Apr 2018 09:23:05 -0700 (PDT), tabbypurr@gmail.com wrote:
>
>> On Sunday, 1 April 2018 14:16:41 UTC+1, Cursitor Doom wrote:
>>> On Sun, 01 Apr 2018 03:31:52 -0700, tabbypurr wrote:
>>>
>>>> With a 1 second duty cycle maybe he could drag it along behind him on
>>>> wheels. Ad what will he do after that 1 second? And btw, a megavolt at
>>>> an amp does not 'stun.' Very practical.
>>>
>>> I'd assumed the million volt remark was just hyperbole. You don't need
>>> anything like 1m volts for that; 60kV is plenty.
>>
>> depends what range you want. Maybe the megavolt is so it's non-contact.
Wear chain mail and tow the generator behind you in a wheel barrow.
> What, you want to play Thor?
Lords of lightning. The video doesn't do the spark sound justice there
is deep rumble and high frequency in a real performance. It gets really
interesting around the 3m30 mark when they use the conductive batons.
ISTR this sort of tesla coil fueled arcs and sparks was pioneered by a
group on a US talent show who terrified the judges by their performance.
--
Regards,
Martin Brown
Reply by Jasen Betts●April 3, 20182018-04-03
On 2018-04-02, krw@notreal.com <krw@notreal.com> wrote:
> On Mon, 2 Apr 2018 00:01:31 -0000 (UTC), Jasen Betts
><jasen@xnet.co.nz> wrote:
>
>>On 2018-04-01, krw@notreal.com <krw@notreal.com> wrote:
>>> On Sun, 1 Apr 2018 13:15:04 -0000 (UTC), Cursitor Doom
>>><curd@notformail.com> wrote:
>>>
>>>>On Sun, 01 Apr 2018 06:57:13 +0000, John Doe wrote:
>>>>
>>>>> I am not planning to do so, just curious...
>>>>>
>>>>> Using a five amp hour 18 V (20 V Max) battery.
>>>>>
>>>>> At 1 million V, that would be somewhere around 3 A for one second?
>>>>>
>>>>> Sounds like a LOT of energy.
>>>>>
>>>>> Thanks.
>>>>
>>>>That does make an excellent power source for this sort of application.
>>>>Enough to make a terrifying statement, anyway! Assuming you're not into
>>>>torture and planning on using this for extended periods of course....
>>>>;-)
>>>
>>> I'd like to see a chemical battery that can produce 3600C.
>>
>>You'll probably find some in the supermarket.
>>AA cells capable of twice that are nothing special
>
> 7KA from an AA cell? Get real!
3600 Coulombs
wrong "C"
--
This email has not been checked by half-arsed antivirus software
Reply by ●April 2, 20182018-04-02
On Mon, 2 Apr 2018 03:55:02 -0000 (UTC), John Doe
<always.look@message.header> wrote:
>krw@notreal.com wrote:
>
>> John Doe <always.look@message.header> wrote:
>>
>>> Yes, of course gasoline is a great propellant. But gasoline
>>> engines suck compared to electric motors, in many applications.
>>> Gasoline engines are dirty and noisy.
>>
>> But that cord hanging out the back of a car is really limiting.
>
>Longing for a nuclear powered wristwatch?
At least I wouldn't have to charge it every day.
>
>>> Been using my cordless drill powered front-wheel-drive bicycle for
>>> many months now. Like its less powerful rear-wheel-drive
>>> predecessor, it will last for years with no maintenance. Just got
>>> back from a 2 mile trip to the megastore, using about half a 5 amp
>>> hour battery. There is no lighter, more efficient, quieter way of
>>> motorized propulsion when many of the trips will be short. And now
>>> DeWalt makes nine amp hour batteries, a plug-in upgrade.
>>
>> But won't move a 2T car very far.
>
>An intelligent scientist should realize that electric powered light
>weight vehicles come before heavy weight vehicles. I have not looked
>in the last year, but no doubt commercial electric bikes are taking
>off big time.
That's what they thought about Segways, too.
>Unfortunately, everything being made in China and China taking over
>companies (most notably small drones) means less innovation. So the
>progress is slower.
Just another fad. One that pays better, I suppose.
>When battery technology permits, it will be used for electric powered
>paragliding. That should be amazing.
I doubt it.
>> You could walk.
>
>My little cordless drill powered bike is a lot more fun, attractive,
>and faster than walking. Using a freewheeling pedal hub for front-
>wheel-drive allows sticking it on any comparable size bicycle.
>Throttle control is ingeniously simple, too. It is apparently better
>than using a hub motor. The only wasted part is the drill's clutch.
>Thought I was going to use the clutch, but in practice (of course) you
>do not want the clutch slipping when you need power.
But not as healthy.
Reply by John Doe●April 2, 20182018-04-02
krw@notreal.com wrote:
> John Doe <always.look@message.header> wrote:
>
>> Yes, of course gasoline is a great propellant. But gasoline
>> engines suck compared to electric motors, in many applications.
>> Gasoline engines are dirty and noisy.
>
> But that cord hanging out the back of a car is really limiting.
Longing for a nuclear powered wristwatch?
>> Been using my cordless drill powered front-wheel-drive bicycle for
>> many months now. Like its less powerful rear-wheel-drive
>> predecessor, it will last for years with no maintenance. Just got
>> back from a 2 mile trip to the megastore, using about half a 5 amp
>> hour battery. There is no lighter, more efficient, quieter way of
>> motorized propulsion when many of the trips will be short. And now
>> DeWalt makes nine amp hour batteries, a plug-in upgrade.
>
> But won't move a 2T car very far.
An intelligent scientist should realize that electric powered light
weight vehicles come before heavy weight vehicles. I have not looked
in the last year, but no doubt commercial electric bikes are taking
off big time.
Unfortunately, everything being made in China and China taking over
companies (most notably small drones) means less innovation. So the
progress is slower.
When battery technology permits, it will be used for electric powered
paragliding. That should be amazing.
> You could walk.
My little cordless drill powered bike is a lot more fun, attractive,
and faster than walking. Using a freewheeling pedal hub for front-
wheel-drive allows sticking it on any comparable size bicycle.
Throttle control is ingeniously simple, too. It is apparently better
than using a hub motor. The only wasted part is the drill's clutch.
Thought I was going to use the clutch, but in practice (of course) you
do not want the clutch slipping when you need power.
Reply by ●April 1, 20182018-04-01
On Mon, 2 Apr 2018 01:02:32 -0000 (UTC), John Doe
<always.look@message.header> wrote:
>Yes, of course gasoline is a great propellant. But gasoline engines
>suck compared to electric motors, in many applications. Gasoline
>engines are dirty and noisy.
But that cord hanging out the back of a car is really limiting.
>
>Been using my cordless drill powered front-wheel-drive bicycle for
>many months now. Like its less powerful rear-wheel-drive
>predecessor, it will last for years with no maintenance. Just got
>back from a 2 mile trip to the megastore, using about half a 5 amp
>hour battery. There is no lighter, more efficient, quieter way of
>motorized propulsion when many of the trips will be short. And now
>DeWalt makes nine amp hour batteries, a plug-in upgrade.
>
But won't move a 2T car very far.
You could walk.
Reply by John Doe●April 1, 20182018-04-01
Yes, of course gasoline is a great propellant. But gasoline engines
suck compared to electric motors, in many applications. Gasoline
engines are dirty and noisy.
Been using my cordless drill powered front-wheel-drive bicycle for
many months now. Like its less powerful rear-wheel-drive
predecessor, it will last for years with no maintenance. Just got
back from a 2 mile trip to the megastore, using about half a 5 amp
hour battery. There is no lighter, more efficient, quieter way of
motorized propulsion when many of the trips will be short. And now
DeWalt makes nine amp hour batteries, a plug-in upgrade.
Jasen Betts <jasen@xnet.co.nz> wrote:
> John Doe <always.look@message.header> wrote:
>> I am not planning to do so, just curious...
>>
>> Using a five amp hour 18 V (20 V Max) battery.
>
> ok so 90 Watt-hours, 324000 Joules
>
>> At 1 million V, that would be somewhere around 3 A for one second?
>
> closer to 300mA
>
>> Sounds like a LOT of energy.
>
> a hand grenade is ballpark 25kJ but that's relesed in a very short period
> a cup of gasoline is about 10MJ
>
Reply by John Doe●April 1, 20182018-04-01
Well then what is it, you freaking troll.
--
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> Subject: Re: Using cordless drill battery as stun gun?
> Newsgroups: sci.electronics.design
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> On 04/01/2018 06:00 PM, John Doe wrote:
>> I wrote:
>>
>>> AT 1 MILLION V, THAT WOULD BE SOMEWHERE AROUND THREE AMPS FOR ONE
>>> SECOND?
>>
>> I just want to know if my simple math is correct.
>>
>
> no
>
>On 2018-04-01, krw@notreal.com <krw@notreal.com> wrote:
>> On Sun, 1 Apr 2018 13:15:04 -0000 (UTC), Cursitor Doom
>><curd@notformail.com> wrote:
>>
>>>On Sun, 01 Apr 2018 06:57:13 +0000, John Doe wrote:
>>>
>>>> I am not planning to do so, just curious...
>>>>
>>>> Using a five amp hour 18 V (20 V Max) battery.
>>>>
>>>> At 1 million V, that would be somewhere around 3 A for one second?
>>>>
>>>> Sounds like a LOT of energy.
>>>>
>>>> Thanks.
>>>
>>>That does make an excellent power source for this sort of application.
>>>Enough to make a terrifying statement, anyway! Assuming you're not into
>>>torture and planning on using this for extended periods of course....
>>>;-)
>>
>> I'd like to see a chemical battery that can produce 3600C.
>
>You'll probably find some in the supermarket.
>AA cells capable of twice that are nothing special
7KA from an AA cell? Get real!
Reply by Jasen Betts●April 1, 20182018-04-01
On 2018-04-01, krw@notreal.com <krw@notreal.com> wrote:
> On Sun, 1 Apr 2018 13:15:04 -0000 (UTC), Cursitor Doom
><curd@notformail.com> wrote:
>
>>On Sun, 01 Apr 2018 06:57:13 +0000, John Doe wrote:
>>
>>> I am not planning to do so, just curious...
>>>
>>> Using a five amp hour 18 V (20 V Max) battery.
>>>
>>> At 1 million V, that would be somewhere around 3 A for one second?
>>>
>>> Sounds like a LOT of energy.
>>>
>>> Thanks.
>>
>>That does make an excellent power source for this sort of application.
>>Enough to make a terrifying statement, anyway! Assuming you're not into
>>torture and planning on using this for extended periods of course....
>>;-)
>
> I'd like to see a chemical battery that can produce 3600C.
You'll probably find some in the supermarket.
AA cells capable of twice that are nothing special
--
This email has not been checked by half-arsed antivirus software