Misty Mornings with 2020 vision
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Re: Misty Mornings with 2020 vision
My view at 8:59 this morning..... Alarm never went off so were late for school run!
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Re: Misty Mornings with 2020 vision
Do you live in the land of eternal darkness?
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Re: Misty Mornings with 2020 vision
A black cat in a coal hole at midnight?
As I get older I think a lot about the hereafter - I go into a room and then wonder what I'm here after.
Inside every old person is a young person wondering what the hell happened.
"Trying is the first step towards failure" ~ Homer J Simpson
Inside every old person is a young person wondering what the hell happened.
"Trying is the first step towards failure" ~ Homer J Simpson
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Re: Misty Mornings with 2020 vision
You were looking out your window the morning before the Big Bang was due to occur?
Nope, I have got it.
Nope, I have got it.
- Spoiler: show
Last edited by Hell Razor5543 on 09 Jan 2020, 14:42, edited 1 time in total.
James
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Yes, I am paranoid, but am I paranoid ENOUGH?
Out amongst the stars, looking for a world of my own!
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Yes, I am paranoid, but am I paranoid ENOUGH?
Out amongst the stars, looking for a world of my own!
- mickthemaverick
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Re: Misty Mornings with 2020 vision
I reckon that's copied from my Armageddon post a few weeks ago!!
I used to be indecisive, now I'm not so sure!
I used to ride on two wheels, but now I need all four!
I used to ride on two wheels, but now I need all four!
- myglaren
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Ooops.
Previously:
2009 Honda Civic :(
C5, C5, Xantia, BX, GS, Visa.
R4, R11TXE, R14, R30TX - x 4888
Re: Misty Mornings with 2020 vision
A completed one of these?
Or this taken to the extreme?
Or this taken to the extreme?
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- (Donor 2020)
- Posts: 1810
- Joined: 19 Jan 2015, 17:42
- Location: Congleton
- Lexia Available: Yes
- My Cars: '95 Xantia 1.9D automatic - 109k one of two remaining
'03 206 GTi180 - 97k in pieces being brought back up to snuff
'03 206 1.9TD - home-built veg-fuelled B-road bruiser
'99 306 SE 2.0i cabriolet - 92k awaiting service work ready for next summer
'97 306 XS 1.6i 3 door, Bianca White, from dead 12 years & seized solid to road legal in 7 days - x 212
Re: Misty Mornings with 2020 vision
Haha nothing so complex, simply the back of my eyelids! oops, managed to get laddo to school just before half past though!
'95 Xantia LX 1.9D-auto, Black, 109k
'03 206 GTi180 94k in surgery
'03 206 1.1S XUD9TE/veg project
'99 306 2.0SE cabriolet 95k summer toy
'97 306 XS 1.6i 99k sat 12 years, fixed in 7 days, 150mile maiden voyage
'03 206 GTi180 94k in surgery
'03 206 1.1S XUD9TE/veg project
'99 306 2.0SE cabriolet 95k summer toy
'97 306 XS 1.6i 99k sat 12 years, fixed in 7 days, 150mile maiden voyage
- white exec
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and lots of Rovers before that: 1935 Ten, 1947 Sixteen, 1960 P5 3-litre, 1966 P6 2000, 1972 P6 2000TC, and 1975 P6B 3500S - x 1752
Re: Misty Mornings with 2020 vision
Winched across from POTD, by request...
This is an evening shot from our terrace, out across Torre del Mar bay, with Gibraltar in the distance.
The maximum distance you can normally see to the horizon is 3 miles - from ground level for a 6-footer.
Up where we are (406m above sea level), you can see 24 miles.
Gibraltar is 90 miles away . . . so how can we see it?
Usual Big Prizes for the answer
A few more...
Sea mist sweeps in And Spain from underneath...?
This is an evening shot from our terrace, out across Torre del Mar bay, with Gibraltar in the distance.
The maximum distance you can normally see to the horizon is 3 miles - from ground level for a 6-footer.
Up where we are (406m above sea level), you can see 24 miles.
Gibraltar is 90 miles away . . . so how can we see it?
Usual Big Prizes for the answer
A few more...
Sea mist sweeps in And Spain from underneath...?
Chris
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Re: Misty Mornings with 2020 vision
Would it be anything to do with the fact that the Rock is 426m high and the horizon distances are the distance limited by the curvature of the earth but raised objects will be visible from further away? (I can't be bothered to do the sums ) but heres a diagram of the principle:white exec wrote: ↑13 Jan 2020, 10:02
The maximum distance you can normally see to the horizon is 3 miles - from ground level for a 6-footer.
Up where we are (406m above sea level), you can see 24 miles.
Gibraltar is 90 miles away . . . so how can we see it?
Usual Big Prizes for the answer
I used to be indecisive, now I'm not so sure!
I used to ride on two wheels, but now I need all four!
I used to ride on two wheels, but now I need all four!
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Online
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- x 2993
Re: Misty Mornings with 2020 vision
Mirage refraction? Taking the picture from a higher than normal elevation? You are using a drone with a decent camera at a much higher altitude?
James
ex BX 1.9
ex Xantia 2.0HDi SX
ex Xantia 2.0HDi LX
Ex C5 2.0HDi VTR
Ex C5 2.0HDi VTR
C5 2.2HDi VTX+
Yes, I am paranoid, but am I paranoid ENOUGH?
Out amongst the stars, looking for a world of my own!
ex BX 1.9
ex Xantia 2.0HDi SX
ex Xantia 2.0HDi LX
Ex C5 2.0HDi VTR
Ex C5 2.0HDi VTR
C5 2.2HDi VTX+
Yes, I am paranoid, but am I paranoid ENOUGH?
Out amongst the stars, looking for a world of my own!
- white exec
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- Location: Sayalonga, Malaga, Spain
- My Cars: 1996 XM 2.5TD Exclusive hatch RHD
1992 BX19D Millesime hatch LHD
previously 1989 BX19RD, 1998 ZX 1.9D auto, 2001 Xantia 1.8i auto
and lots of Rovers before that: 1935 Ten, 1947 Sixteen, 1960 P5 3-litre, 1966 P6 2000, 1972 P6 2000TC, and 1975 P6B 3500S - x 1752
Re: Misty Mornings with 2020 vision
Mick hits the basic geometry: go higher, and you can see further round the curve.
But that's not the reason.
Mirage? No. It's the real thing.
But on the right track.
Clue: Seeing Gib 90 miles away is only possible near sunset.
But that's not the reason.
Mirage? No. It's the real thing.
But on the right track.
Clue: Seeing Gib 90 miles away is only possible near sunset.
Chris
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Re: Misty Mornings with 2020 vision
A mirage is caused by light bending as it passes through air of differing temperatures. The clue (that it only occurs near sunset) would suggest this is likely. Does it happen more often after hot days? If it does, what could be happening is that the ground has become very hot during the day. As cooler air moves in during the evening it is warmed by the ground, allowing a refraction more parallel to the ground (a normal mirage is where the air is hotter than the ground causing a reflection of the sky to appear on the ground). If this is the case it would explain why Gibraltar can been seen when it is, in fact, too far around the horizon to be seen in normal conditions from that altitude.
If I am right then the air is, in effect, behaving like a fibre optic strand to allow the view of Gibraltar to become visible.
If I am right then the air is, in effect, behaving like a fibre optic strand to allow the view of Gibraltar to become visible.
James
ex BX 1.9
ex Xantia 2.0HDi SX
ex Xantia 2.0HDi LX
Ex C5 2.0HDi VTR
Ex C5 2.0HDi VTR
C5 2.2HDi VTX+
Yes, I am paranoid, but am I paranoid ENOUGH?
Out amongst the stars, looking for a world of my own!
ex BX 1.9
ex Xantia 2.0HDi SX
ex Xantia 2.0HDi LX
Ex C5 2.0HDi VTR
Ex C5 2.0HDi VTR
C5 2.2HDi VTX+
Yes, I am paranoid, but am I paranoid ENOUGH?
Out amongst the stars, looking for a world of my own!
- mickthemaverick
- Donor 2024
- Posts: 13523
- Joined: 11 May 2019, 17:56
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Re: Misty Mornings with 2020 vision
Does that mean it involves sunlight from a lower level in the west casting the "shadow" up into your eyeline or maybe refracting off the atmosphere?
I used to be indecisive, now I'm not so sure!
I used to ride on two wheels, but now I need all four!
I used to ride on two wheels, but now I need all four!
- white exec
- Moderating Team
- Posts: 7445
- Joined: 21 Dec 2015, 12:46
- Location: Sayalonga, Malaga, Spain
- My Cars: 1996 XM 2.5TD Exclusive hatch RHD
1992 BX19D Millesime hatch LHD
previously 1989 BX19RD, 1998 ZX 1.9D auto, 2001 Xantia 1.8i auto
and lots of Rovers before that: 1935 Ten, 1947 Sixteen, 1960 P5 3-litre, 1966 P6 2000, 1972 P6 2000TC, and 1975 P6B 3500S - x 1752
Re: Misty Mornings with 2020 vision
Spot on.Hell Razor5543 wrote: ↑13 Jan 2020, 14:53 A mirage is caused by light bending as it passes through air of differing temperatures. The clue (that it only occurs near sunset) would suggest this is likely. Does it happen more often after hot days? If it does, what could be happening is that the ground has become very hot during the day. As cooler air moves in during the evening it is warmed by the ground, allowing a refraction more parallel to the ground (a normal mirage is where the air is hotter than the ground causing a reflection of the sky to appear on the ground). If this is the case it would explain why Gibraltar can been seen when it is, in fact, too far around the horizon to be seen in normal conditions from that altitude.
If I am right then the air is, in effect, behaving like a fibre optic strand to allow the view of Gibraltar to become visible.
As the sun goes down, the air at higher altitudes cools quickly, and is temporarily sitting on top of warmer air near the ground - the warmed ground radiates heat into the air immediately above it.
This means that the air near the ground is less dense (warmer) than the air higher up (colder), and the density graduation behaves just like a lens - it bends the light.
Rather than the "bent stick" effect seen when a pole sticks out of the surface of water, where there is a sudden change of density (at the water-air boundary), the change of density of the air at sunset (after a warm day) is a progressive one - nothing sudden - and so it bends light in a curve.
So, light emanating from Gibraltar towards the observer doesn't go off onto space in a straight line, but is curved downwards by the colder air. In that way, you can "see over the horizon".
Virtual beer tokens!
Chris
- mickthemaverick
- Donor 2024
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Re: Misty Mornings with 2020 vision
Every day's a schoolday!!!
I used to be indecisive, now I'm not so sure!
I used to ride on two wheels, but now I need all four!
I used to ride on two wheels, but now I need all four!