11-year old "engineer" needs counseling
in [Design]
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From: Dirk Bruere at NeoPax on 17 Jan 2010 18:01 Archimedes' Lever wrote: > On Mon, 18 Jan 2010 03:59:36 +0530, "pimpom" <pimpom(a)invalid.invalid> > wrote: > >> Spehro Pefhany wrote: >>> On Mon, 18 Jan 2010 03:10:35 +0530, the renowned "pimpom" >>> <pimpom(a)invalid.invalid> wrote: >>> >>>> Howard Eisenhauer wrote: >>>>> >>>>> When I was in high school the physics teachers used to charge >>>>> up >>>>> capacitors & leave them lying around on the lab benches for >>>>> the >>>>> first >>>>> year students. One of my buddies got wise to this ahead of >>>>> time & >>>>> sprayed his fingertips with clear acrylic before class. Went >>>>> in, >>>>> picked up the cap, waited for the dissappointed look on >>>>> teach's >>>>> face >>>>> then handed it over to him. >>>>> >>>>> Priceless :> >>>>> >>>> I'm in one of the most remote regions of India where >>>> electricity >>>> other than batteries had been available for only a few years >>>> when >>>> I finished high school. Our science teacher, a French-Canadian >>>> RC >>>> brother in our mission school, told us that while mains >>>> voltage >>>> (230V over here) was dangerous, batteries weren't. To >>>> demonstrate, he brought a tube radio battery, inserted a pair >>>> of >>>> wires into the 90V outlet and held the ends with his (dry) >>>> hands. >>>> >>>> Most of us kids already knew it wasn't as simple as that, and >>>> one >>>> of my classmates told him to put both wire tips to his tongue. >>>> He >>>> did. /That/ too was priceless. >>> 10 x 9V batteries in series would be just as effective. >> 9V batteries were still not in common use here then. It was >> either 90V or D cells. >> >>> I don't think I've seen a 90V "B" battery since I was about 12, >>> and >>> even then it was probably an old dead one. How long ago were >>> they >>> available in remote regions of India? >>> >>> >> Don't remember for sure, but I think they were quite rare by the >> end of the 60s. Let's see..... I finished high school when I was >> 15 and started teaching myself electronics in my teens while >> doing my B.Sc. I remember designing and building mains adapters >> for legacy 90V tube radios. Yeah, transistors and proper >> mains-operated tubes had taken over by then and only those who'd >> bought those 90V sets in the 50s and early 60s had them by the >> end of the 60s and early 70s. >> > > > The "B" cells I remember were 63 Volts. Sure that wasn't 6.3V for the filament heater? -- Dirk http://www.transcendence.me.uk/ - Transcendence UK http://www.theconsensus.org/ - A UK political party http://www.blogtalkradio.com/onetribe - Occult Talk Show
From: Archimedes' Lever on 17 Jan 2010 18:13 On Sun, 17 Jan 2010 23:01:05 +0000, Dirk Bruere at NeoPax <dirk.bruere(a)gmail.com> wrote: >Archimedes' Lever wrote: >> On Mon, 18 Jan 2010 03:59:36 +0530, "pimpom" <pimpom(a)invalid.invalid> >> wrote: >> >>> Spehro Pefhany wrote: >>>> On Mon, 18 Jan 2010 03:10:35 +0530, the renowned "pimpom" >>>> <pimpom(a)invalid.invalid> wrote: >>>> >>>>> Howard Eisenhauer wrote: >>>>>> >>>>>> When I was in high school the physics teachers used to charge >>>>>> up >>>>>> capacitors & leave them lying around on the lab benches for >>>>>> the >>>>>> first >>>>>> year students. One of my buddies got wise to this ahead of >>>>>> time & >>>>>> sprayed his fingertips with clear acrylic before class. Went >>>>>> in, >>>>>> picked up the cap, waited for the dissappointed look on >>>>>> teach's >>>>>> face >>>>>> then handed it over to him. >>>>>> >>>>>> Priceless :> >>>>>> >>>>> I'm in one of the most remote regions of India where >>>>> electricity >>>>> other than batteries had been available for only a few years >>>>> when >>>>> I finished high school. Our science teacher, a French-Canadian >>>>> RC >>>>> brother in our mission school, told us that while mains >>>>> voltage >>>>> (230V over here) was dangerous, batteries weren't. To >>>>> demonstrate, he brought a tube radio battery, inserted a pair >>>>> of >>>>> wires into the 90V outlet and held the ends with his (dry) >>>>> hands. >>>>> >>>>> Most of us kids already knew it wasn't as simple as that, and >>>>> one >>>>> of my classmates told him to put both wire tips to his tongue. >>>>> He >>>>> did. /That/ too was priceless. >>>> 10 x 9V batteries in series would be just as effective. >>> 9V batteries were still not in common use here then. It was >>> either 90V or D cells. >>> >>>> I don't think I've seen a 90V "B" battery since I was about 12, >>>> and >>>> even then it was probably an old dead one. How long ago were >>>> they >>>> available in remote regions of India? >>>> >>>> >>> Don't remember for sure, but I think they were quite rare by the >>> end of the 60s. Let's see..... I finished high school when I was >>> 15 and started teaching myself electronics in my teens while >>> doing my B.Sc. I remember designing and building mains adapters >>> for legacy 90V tube radios. Yeah, transistors and proper >>> mains-operated tubes had taken over by then and only those who'd >>> bought those 90V sets in the 50s and early 60s had them by the >>> end of the 60s and early 70s. >>> >> >> >> The "B" cells I remember were 63 Volts. > >Sure that wasn't 6.3V for the filament heater? I said "B" supply, dingledorf. They were hand held two-way radios of the Korean War era. I wish I still had them as I am sure they are worth something now.
From: whit3rd on 17 Jan 2010 19:44 On Jan 17, 12:45 pm, Spehro Pefhany <speffS...(a)interlogDOTyou.knowwhat> wrote: > The bomb in _Inglourious Basterds_ incorporates a machinist's dial > indicator as the timing device. 8-( If there was an ice cube in there, too, it could work. Waste of a gage, though.
From: krw on 17 Jan 2010 19:52 On Sun, 17 Jan 2010 17:03:06 -0500, "Michael A. Terrell" <mike.terrell(a)earthlink.net> wrote: > >krw wrote: >> >> On Sun, 17 Jan 2010 13:02:14 -0500, "Michael A. Terrell" >> <mike.terrell(a)earthlink.net> wrote: >> >> > >> >Falk Willberg wrote: >> >> >> >> J.A. Legris schrieb: >> >> > On Jan 16, 5:53 pm, Jan Panteltje <pNaonStpealm...(a)yahoo.com> wrote: >> >> >> On a sunny day (Sat, 16 Jan 2010 15:43:26 -0700) it happened don <don> wrote >> >> >> in <HeGdne8ObvOX3M_WnZ2dnUVZ_jhi4...(a)forethought.net>: >> >> >> >> >> >>> http://www.signonsandiego.com/news/2010/jan/15/students-evacuated-sch... >> >> >> US has turned into a bunch of paranoid schizofrenics. >> >> >> >> "A vice principal saw the student showing it to other students..." >> >> Terrorists show their bombs around? >> >> "... *empty* half-liter Gatorade bottle with some wires and other >> >> electrical components..." >> >> >> >> > No, the U.S. has turned into a place where there's a reasonable chance >> >> > of being harmed by crazies using anything from handguns, to assault >> >> > rifles, to homemade bombs. >> >> >> >> Common sense. And common sense (Hollymood movies) teaches, that >> >> cylindrical objects are not batteries but dynamite and the wires are >> >> used to ignite the dynamite. >> >> But it is also general knowledge how to deactivate any bomb: Wait for >> >> the counter to go down to 00:05 and the cut the *blue* wire. (Never cut >> >> the red wire!) >> > >> > >> > That's why I only use green wire for projects. No red or blue wire = >> >no bomb. >> >> That's what Joerg needs to do. No red wires, no blue wires, no >> *phut!*. >> >> >> BTW: Are cars allowed near U.S. schools? >> > >> > >> > Some high school kids drive to school. >> >> Don't all high schools allow this? > > > Maybe by now, but some didn't have enough parking so the only ones >allowed were the ones in the co-op programs and it was almost impossible >to be assigned a space. Every high school I've seen in twenty years has cars parked everywhere. Apparently a lot of seniors don't have full days anymore. They've dumbed the curriculum down so much that they can skate the last year. The leave when their classes are over.
From: Dirk Bruere at NeoPax on 17 Jan 2010 20:56
Archimedes' Lever wrote: > On Sun, 17 Jan 2010 23:01:05 +0000, Dirk Bruere at NeoPax > <dirk.bruere(a)gmail.com> wrote: > >> Archimedes' Lever wrote: >>> On Mon, 18 Jan 2010 03:59:36 +0530, "pimpom" <pimpom(a)invalid.invalid> >>> wrote: >>> >>>> Spehro Pefhany wrote: >>>>> On Mon, 18 Jan 2010 03:10:35 +0530, the renowned "pimpom" >>>>> <pimpom(a)invalid.invalid> wrote: >>>>> >>>>>> Howard Eisenhauer wrote: >>>>>>> When I was in high school the physics teachers used to charge >>>>>>> up >>>>>>> capacitors & leave them lying around on the lab benches for >>>>>>> the >>>>>>> first >>>>>>> year students. One of my buddies got wise to this ahead of >>>>>>> time & >>>>>>> sprayed his fingertips with clear acrylic before class. Went >>>>>>> in, >>>>>>> picked up the cap, waited for the dissappointed look on >>>>>>> teach's >>>>>>> face >>>>>>> then handed it over to him. >>>>>>> >>>>>>> Priceless :> >>>>>>> >>>>>> I'm in one of the most remote regions of India where >>>>>> electricity >>>>>> other than batteries had been available for only a few years >>>>>> when >>>>>> I finished high school. Our science teacher, a French-Canadian >>>>>> RC >>>>>> brother in our mission school, told us that while mains >>>>>> voltage >>>>>> (230V over here) was dangerous, batteries weren't. To >>>>>> demonstrate, he brought a tube radio battery, inserted a pair >>>>>> of >>>>>> wires into the 90V outlet and held the ends with his (dry) >>>>>> hands. >>>>>> >>>>>> Most of us kids already knew it wasn't as simple as that, and >>>>>> one >>>>>> of my classmates told him to put both wire tips to his tongue. >>>>>> He >>>>>> did. /That/ too was priceless. >>>>> 10 x 9V batteries in series would be just as effective. >>>> 9V batteries were still not in common use here then. It was >>>> either 90V or D cells. >>>> >>>>> I don't think I've seen a 90V "B" battery since I was about 12, >>>>> and >>>>> even then it was probably an old dead one. How long ago were >>>>> they >>>>> available in remote regions of India? >>>>> >>>>> >>>> Don't remember for sure, but I think they were quite rare by the >>>> end of the 60s. Let's see..... I finished high school when I was >>>> 15 and started teaching myself electronics in my teens while >>>> doing my B.Sc. I remember designing and building mains adapters >>>> for legacy 90V tube radios. Yeah, transistors and proper >>>> mains-operated tubes had taken over by then and only those who'd >>>> bought those 90V sets in the 50s and early 60s had them by the >>>> end of the 60s and early 70s. >>>> >>> >>> The "B" cells I remember were 63 Volts. >> Sure that wasn't 6.3V for the filament heater? > > > I said "B" supply, dingledorf. They were hand held two-way radios of the > Korean War era. I wish I still had them as I am sure they are worth > something now. I do not think there is much of a market for rotted 50 year old "B" batteries. -- Dirk http://www.transcendence.me.uk/ - Transcendence UK http://www.theconsensus.org/ - A UK political party http://www.blogtalkradio.com/onetribe - Occult Talk Show |