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Teddio

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EDDIE51

Selenium Cells ,No longer used?

I have just listed my vintage Olympus camera on ebay. It has a Selenium photo cell that provides all the power needed for the auto metering. It prompts me to ask 'Why do modern cameras not use...
22:39 Wed 07th Jan 20094 answers, last by EDDIE51 18:44 Fri 09th Jan 2009
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peanut273

help with a question!

Ok..Stuck doing my lab report for uni and I wanted to know if anyone knows about using a spectrophotometer? I know what it is (used for the measuring the accurate characteristic absorbance of...
00:41 Fri 09th Jan 20098 answers, last by theprof 20:58 Tue 13th Jan 2009
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Lakitu

Journey to the edge of the universe

I watched the above named documentary a couple of nights ago. Absolutely mind blowing stuff. If you didn't, it's a journey to the edge of the universe in one shot - obviously computer generated - we...
09:38 Tue 06th Jan 200945 answers, last by Lakitu 22:47 Mon 12th Jan 2009
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amywy88

Surface Charging wih surface analysis techniques

Do different techniques cause different amounts of surface charging or does it depend on the intensity of the beam? Why doesnt surface charge build up on the surface of conductors? Thanks
19:23 Sun 04th Jan 20091 answer, last by Teddio 19:35 Sun 04th Jan 2009
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swedeheart

negative iones lightbulb to good to be true?

I knew it, it's the positive iones that are making me lethargic! What's your opinion, is this a con? "Removing particles of dust" sounds a bit too good to be true?
16:11 Sun 04th Jan 20096 answers, last by swedeheart 22:47 Sun 04th Jan 2009
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scotty6663

how do you make a bomb

with house hold chemicals?
23:11 Sat 03rd Jan 200912 answers, last by no.knowledge 19:33 Sun 04th Jan 2009
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20SilkCut

Exhaust pipe question

Dont laugh at my question.... but for the second time now (in a few months) i have noticed long black acrylic-like stuff?? hanging out of my exhaust pipe. I'm guessing that there may be two answers to...
00:05 Thu 01st Jan 20099 answers, last by 20SilkCut 16:00 Sun 04th Jan 2009
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MWB

Disabled.

My mother is a nurse & said that sometimes, when a disabled baby is born, it's left to die. Now this seems awful. But, people born with a disability (or birth defect) are a drain on everything -...
08:20 Thu 01st Jan 200924 answers, last by MWB 11:01 Fri 02nd Jan 2009
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naomi24

The Promised Land

If there never had been a Promised Land, would the world be a better place?
09:20 Tue 30th Dec 200864 answers, last by 123everton 21:05 Tue 06th Jan 2009
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rov1200

Space orbits

Do all man made objects blasted off from Earth orbit clockwise or anticlockwise? Have any collided?
23:30 Tue 23rd Dec 20089 answers, last by rov1200 10:22 Fri 26th Dec 2008
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affan4

chemistry

why is FeCl2 formed instead of FeCl3 ,when iron reacts with dilute HCl?
10:07 Wed 24th Dec 20084 answers, last by affan4 19:43 Sun 28th Dec 2008
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123everton

Science

Could the established society of scientists conspire to suppress information? If for instance they had information that was relevant to the health of say 1 in 1000 people and they conferred to hide...
12:23 Mon 22nd Dec 200842 answers, last by naomi24 22:41 Tue 23rd Dec 2008
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affan4

chemistry

A metal 'X' reacts with oxygen to form metal oxide 'Y' which is used for drying NH3. 'Y' dissolves in water producing 'Z' with hissing sound which is used for white washing. The clear solution of 'Z'...
08:56 Mon 22nd Dec 20085 answers, last by factor30 14:52 Sun 28th Dec 2008
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shirley84

fiat punto makes noises on the engine area

i bought a fiat punto 06. it was fine at first no noises engine sounded perfect. i was told it was a cat d. went for it anyway. but recently i have been hearing strange noises went car starts and...
21:39 Fri 19th Dec 20089 answers, last by dennisb66 18:54 Mon 22nd Dec 2008
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LewPaper

Zimbabwe

All that's required for evil to thrive is for good men to do nothing.
09:10 Thu 18th Dec 200820 answers, last by MWB 10:20 Sat 27th Dec 2008
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docspock

Are all animals, excluding homo sapiens, atheists.

I have never seen a dog, cat, cow, sheep or horse going to church on it's own. Where does that fit in with "All creatures great and small"
11:49 Thu 18th Dec 200817 answers, last by 123everton 13:19 Sat 20th Dec 2008
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claymore

fusion reactor

When we finally get a fusion reactor up and running .will it create dangerous radioactivity and radioactive waste the same as the reactors do now?
09:39 Thu 18th Dec 20084 answers, last by jake-the-peg 12:03 Thu 18th Dec 2008
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kathryn.girl

Significant Figures

99834 , whats that to 1 sig. figure ?
20:42 Wed 26th Nov 20083 answers, last by Teddio 21:29 Thu 11th Dec 2008
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Francis Asis

Sunset

Hope this is the right place for this. If it takes approximately 8 minutes for the light from the sun to reach us and I am watching the sun set, did the sun actually set 8 minutes ago?
20:53 Thu 11th Dec 200819 answers, last by robknot 19:47 Tue 16th Dec 2008
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37831999

Build a aerial

How can i build a aerial capable of recieving tv signals and how do i amplify it using a car battery?
22:05 Tue 02nd Dec 20082 answers, last by Teddio 12:09 Fri 05th Dec 2008

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