View Profile: JohnD - Cosmoquest Forum

Yesterday, 10:08 AM

JohnD replied to a thread Cloned stem cells. in Science and Technology

You raise an issue for debate, NCM, without a proposal for argument. What particular mess do you expect? JOhn

8 replies | 121 view(s)

Yesterday, 10:04 AM

JohnD replied to a thread Why is speed of light considered constant throughout history? in Science and Technology

I was going to say that current theory proposes a maxiumum light speed everywhere in the Universe, now, but that we see the Universe as it was many...

27 replies | 403 view(s)

Yesterday, 09:53 AM

JohnD replied to a thread Mechanical advantages of rails? in Science and Technology

"Rails", meaning lengths of iron/steel to carry steam engines and trains were well pre-dated by wooden rails for simple horse or human powered carts....

14 replies | 171 view(s)

2013-May-13, 09:38 AM

JohnD replied to a thread Richard Feynman Night, on UK BBC 2 TV in Small Media at Large

And tonight Monday 13th another sci bio this time Marie Curie. Same channell but instead of prime time its shown at 2330. And Mde Curie had not...

2 replies | 99 view(s)

2013-May-12, 08:38 AM

JohnD started a thread Richard Feynman Night, on UK BBC 2 TV in Small Media at Large

Yesterday, 11th May 2013, was the 95th anniversary of the birth of Rishard FeynmanIn the UK. Tonight, Sunday May 12th, BBC 2 is reshowing "The...

2 replies | 99 view(s)

2013-May-11, 09:31 AM

JohnD replied to a thread General public's misconceptions about astronomy in Space/Astronomy Questions and Answers

Non-myth. Meteor showers cause cloudy weather. At least they do where I live. John

59 replies | 1251 view(s)

2013-May-11, 09:27 AM

JohnD replied to a thread [Sensors on a comet] in Space Exploration

FarmMarsNow pointed out the chnages in a comet's materials as it approaches the Sun, and I agree. But also, those changes includes...

16 replies | 333 view(s)

2013-May-10, 07:53 AM

JohnD replied to a thread What the heck is "Silverlight"? in Off-Topic Babbling

I'm quite prepared, NoChoice, to suck up your very blunt reply, as between us we have given Trebuchet an answer that was previously missing in this...

9 replies | 255 view(s)

2013-May-09, 08:27 AM

JohnD replied to a thread What the heck is "Silverlight"? in Off-Topic Babbling

Microsoft Silverlight is website editing software. See: http://www.microsoft.com/silverlight/ I use a version to edit pages of my employer's...

9 replies | 255 view(s)

2013-May-01, 09:42 PM

JohnD replied to a thread Evolution question. in Off-Topic Babbling

I thought that was the case. Insects get their oxygen by tubes that enter the body all along it's length, and branch multiply into minute vessels....

37 replies | 815 view(s)

2013-Apr-20, 09:01 PM

JohnD replied to a thread Mud slinging: soil in space in Space Exploration

Oh, for goodness sake, I'm trying to have serious conversation on the engineering of this, instead of just assuming it can happen, and all you want...

50 replies | 807 view(s)

2013-Apr-20, 08:54 PM

JohnD replied to a thread Mud slinging: soil in space in Space Exploration

Oh, for goodness sake, I'm trying to have serious conversation on the engineering of this, instead of just assuming it can happen, and all you want...

50 replies | 807 view(s)

2013-Apr-20, 02:34 PM

JohnD replied to a thread Mud slinging: soil in space in Space Exploration

Water - abundant? Humans need about three litres of water a day to survive, plus cookig, washing etc. let's be mena and say 25 litres a day. Oh,...

50 replies | 807 view(s)

2013-Apr-19, 10:42 PM

JohnD replied to a thread Shock Wave Intensity in Science and Technology

This explosion may have similarities to an incident in the UK in 2005. Buncefield was a petrol (gasoline) storage farm, alarmingly close to London. ...

26 replies | 761 view(s)

2013-Apr-19, 10:12 PM

JohnD replied to a thread Mud slinging: soil in space in Space Exploration

Anything is possible james, but won't this make the synthesis of soil from regolith that much more complicated? I mean, 'washing' the soil? On...

50 replies | 807 view(s)