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Rev. Green

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Rev. Green

Why are fundamental particles the same?

When a high-energy photon forms an electron/positron pair the electrons always have the same mass, charge, etc. Why? If you sent dough to several locations to be made into loaves, the loaves would all...
19:55 Sun 01st May 20116 answers, last by beso 02:23 Wed 04th May 2011
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Rev. Green

Long-wheelbase wheelchair

Does anyone know of a wheelchair manufacturer who makes a lightweight wheelchair with large rear wheels and a wheelbase of at least 40cm? All the wheelchairs which we have tried which weigh less than...
20:42 Thu 21st Apr 20115 answers, last by Rev. Green 09:46 Fri 26th Oct 2012
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Rev. Green

Which App shows detailed memory use?

Is there an App for iPhone which shows the size of the other Apps? I need to free some space, but I'd rather delete a few big Apps than many tiny ones.
19:20 Fri 15th Apr 20113 answers, last by Rev. Green 15:25 Sat 16th Apr 2011
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Rev. Green

Antimatter galaxies?

Why is the amount of matter and the amount of antimatter though to be different? Couldn't the local group of galaxies be just a "minor", local fluctuation ( of 10^40 tonnes!) in the amount...
21:41 Tue 28th Dec 20102 answers, last by jake-the-peg 08:55 Wed 29th Dec 2010
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Rev. Green

Billions

We've lost the battle for billions, trillions, etc. to be sensibly ten to the sixth, twelfth, etc. Let's use them as ten to the sixth, ninth, etc. That way it is easy to work out that an octillion...
12:07 Mon 06th Dec 201011 answers, last by mibn2cweus 15:35 Tue 07th Dec 2010
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Rev. Green

Xmas cake too dry

I've cooked a small Christmas cake for 150 minutes at 135 degrees Celcius in a fan oven. It isn't bad, but a little dry. Next time, to make it moister, is it better to reduce the cooking time, reduce...
11:31 Mon 06th Dec 20108 answers, last by Sqad 11:49 Tue 07th Dec 2010
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Rev. Green

Healthy Roast Potatoes?

Is there a healthy way of roasting potatoes? When I use olive oil or sunflower oil instead of butter or hard fat they do not become crisp.
11:35 Mon 15th Nov 201013 answers, last by ummmm 12:17 Mon 15th Nov 2010
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Rev. Green

Is Strowger to be phased out?

The NHS Direct telephone number is to be replaced by 111, a number which it is inadvisable to use on Strowger systems as a faulty line can produce a series of 1's. Is Strowger to be phased out? Both...
18:57 Sun 29th Aug 20103 answers, last by craft1948 11:44 Mon 30th Aug 2010
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Rev. Green

Wheelchair stability

Is there an attachment, or modification, which makes a wheelchair stable. Grandma(90) has a lightweight, attendant-propelled, wheelchair which has two large wheels at the back and two small wheels at...
19:59 Tue 03rd Aug 20107 answers, last by marcwebster 02:26 Wed 24th Oct 2012
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Rev. Green

Black Hole Evaporation

How does a black hole evaporate? If it is not rotating and not charged then it can lose its mass by gamma ray Hawking radiation, but what if it is charged? The particle which removes the remaining...
10:29 Wed 28th Jul 20108 answers, last by Rev. Green 20:40 Tue 03rd Aug 2010
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Rev. Green

Car Insurance cost for young driver

My son is too young to drive but he needs to choose a college now. He is considering a college which is a very long bicycle ride away and he'd like to know the cost of car insurance because he might...
17:18 Sun 08th Nov 20099 answers, last by Rev. Green 11:06 Wed 11th Nov 2009
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Rev. Green

The Rainbow and the Rose

I've just read "The Rainbow and the Rose" by Neville Shute. Good book, but why is it called "The Rainbow and the Rose" - it mentions neither?
20:00 Wed 04th Nov 20092 answers, last by Rev. Green 21:57 Wed 04th Nov 2009
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Rev. Green

Infinite number of Universes and winning the lottery.

People often say things like "If the number of Universes is infinite, there must be some where I've won the lottery". Can someone with a good understanding of Aleph-null, Aleph-one, etc. tell me if...
16:37 Mon 27th Jul 200927 answers, last by jake-the-peg 16:25 Tue 28th Jul 2009
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Rev. Green

"Just as the Evening Breeze"

Does anyone know the sentimental song "Just as the Evening Breeze", probably from about 1920?
19:53 Fri 24th Jul 20092 answers, last by Rev. Green 20:23 Sat 25th Jul 2009
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Rev. Green

Mincemeat

Every summer fete has mince pies, but there isn't any mincemeat in the shops because it is "seasonal". Is there a supermarket which stocks it, or does everyone stockpile at Christmas?
20:23 Sat 11th Jul 200910 answers, last by jaffa cake 18:39 Mon 13th Jul 2009
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Rev. Green

Nominal value of shares, and value of deferred shares.

What determines the nominal value of a share? Each GKN share with a nominal value of 50p has been replaced by an ordinary share with a nominal value of 10p and a deferred share with a nominal value of...
14:00 Thu 09th Jul 20091 answer, last by dr b 00:09 Wed 15th Jul 2009
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Rev. Green

SatNav for planes

A car's sat nav is accurate to 5 metres. Is it unreasonable to expect an aeroplane's position to be known better than "mid Atlantic"?
12:50 Tue 02nd Jun 20098 answers, last by Gromit 19:09 Tue 02nd Jun 2009
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Rev. Green

Microsoft illogic

Pressing the "previous" arrow on a message in Outlook gives the next LATER message, What other examples of Microsoft illogic annoy you?
09:32 Fri 22nd May 20095 answers, last by Rev. Green 21:19 Sat 30th May 2009
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Rev. Green

Changing the past

Brian Greene describes an experiment (The Fabric of the Cosmos p194) in which a photon beam passes through a beam-splitter. Each beam then passes through a down-converter (which emits two half-energy...
20:42 Tue 24th Mar 20097 answers, last by Rev. Green 20:50 Wed 25th Mar 2009
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Rev. Green

Gamepad control of PowerPoint

How can I change a displayed graphic when someone hits a gamepad button? I can change the graphic in PowerPoint using the keyboard, but is there a way of using a gamepad? Failing that, how do I...
10:28 Sun 22nd Mar 20093 answers, last by ChuckFickens 16:15 Mon 23rd Mar 2009

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