It's strange that, although predominantly left handed, there are certain
things I can't do left handed. Using scissors is one of them, firing a
pistol is another. But I do wish that my infrequent right handedness
extended to using a circular saw. Left handed circular saws are
available but only at extremely high prices. But using a right handed
circular saw in a left handed manner is pretty dangerous. I have to be
extremely careful and avoid it whenever possible.
Chuck Norcutt
On 12/17/2010 6:14 AM, John Hudson wrote:
> I saw one recently especially designed for sou'paws. Was quite tempted but
> went for the sou'paw left handed scissors instead.
>
> jh
>
>
>
> ----- Original Message -----
> From: "Bill Pearce"<bs.pearce@xxxxxxx>
> To: "'Olympus Camera Discussion'"<olympus@xxxxxxxxxxxxxxxxx>
> Sent: Thursday, December 16, 2010 6:02 PM
> Subject: Re: [OM] Battery types [was - iPods from Apple]
>
>
>> I recently got a powered screwdriver, a Bosch. It says it has NiMH. It
>> holds
>> a charge for a really long time and lasts forever.
>>
>>
>>
>> From: Chuck Norcutt [mailto:chucknorcutt@xxxxxxxxxxxxxxxx]
>> Sent: Thursday, December 16, 2010 1:57 PM
>> To: Olympus Camera Discussion
>> Subject: Re: [OM] Battery types [was - iPods from Apple]
>>
>>
>>
>> I think the perseverance of NiCd cells in certain applications is
>> readily understandable in terms of the rate of self discharge. NiCd
>> cells (until recently) have had much lower self discharge rates than
>> NiMH cells. NiCD persists for a walkie-talkie or portable drill since
>> you haven't been able to count on an NiMH powered device to have any
>> charge left if you haven't used it in 3-6 months.
>>
>> But that all started to change recently. You may recall the
>> announcement posted here the other day by Tim Hughes concerning three
>> new types of NiMH batteries from Sanyo Eneloop. The newest cells
>> promise 75% power after 3 years sitting on the shelf. That's probably
>> better than NiCd, maybe even much better.
>>
>> Also, I note that drill drivers are starting to show up that have
>> lithium-ion batteries. The last I noticed they were expensive enough
>> that I wasn't willing to replace my own NiCD powered drill but the next
>> power tool purchase could be something different.
>>
>> Chuck Norcutt
>>
>>
>> On 12/16/2010 12:54 PM, Jan Steinman wrote:
>>>> From: Moose<olymoose@xxxxxxxxx>
>>>>
>>>> On 12/15/2010 11:00 AM, Jan Steinman wrote:
>>>>> Although it's open on my desktop, I've not looked at the
>>>>> BatteryUniversity.com site yet, but my understanding of classic
>>>>> NiCd is that repeated incomplete discharging to about the same
>>>>> level causes a crystalline precipitate to form at a certain
>>>>> location related to the discharge depth, therefore causing the
>>>>> mis-named "memory effect." (It should really be called the
>>>>> "forget effect." :-)
>>>>>
>>>>> Memory effect is not a problem when the cell is repeatedly
>>>>> discharged to different levels. Classic case: a cop runs a
>>>>> walkie-talkie for eight hours a day and drops it in the charger
>>>>> overnight -- bad news for NiCd cell life. But memory effect is
>>>>> not likely if you're using a flash or motor drive for various
>>>>> periods of time and then topping off on a charger.
>>>>
>>>> "Among rechargeable batteries, nickel-cadmium remains a popular
>>>> choice for two-way radios,"
>>>>
>>>> Since what you say here doesn't agree with what's on that site,
>>>> perhaps you might read it and resolve the differences.
>>>
>>> Yea, I'll have to check that out, because it doesn't go along with my
>>> experience as a ham-radio operator, my work as a repair tech in a
>>> two-way communications shop, nor my stint as an RF engineer.
>>>
>>> I don't know of any hams who still use NiCd cells in their two-way
>>> radios, but note that the OEM battery packs you get from Icom for
>>> older radios still have them. Perhaps its just because NiCd's are
>>> still cheaper. (New hand-held ham gear is almost all lithium
>>> powered.)
>>>
>>> NiCds do have lower internal resistance than NiMH, which might make
>>> them preferable in high-current applications -- like photo strobes.
>>> But that wouldn't explain hand-held radios, which have relatively
>>> moderate current needs. And if they're so good for hand-helds, why
>>> don't you ever see them in cell phones? Puzzle.
>>>
>>> But such fun has to wait. I have to go pick up a buck to romance our
>>> four Nubian goats today.
>>>
>>> Obligatory camera content: I need to take some photos of our
>>> zero-mile raw goat milk ice cream... if there's any left...
>>>
>>> ---------------- Religions are the great fairy tales of conscience.
>>> -- George Santayana :::: Jan Steinman, EcoReality Co-op ::::
>>>
>> --
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