Search found 401 matches

by jochta
19 Jun 2015, 6:14pm
Forum: Fun & Games
Topic: Here's a puzzle for you...
Replies: 303
Views: 25643

Re: Here's a puzzle for you...

aspiringcyclist wrote:
Manc33 wrote:
Its the same thing with Darwin, it is a "convincing sounding argument" but not proven because no species can be shown to have turned into another species and that is a basic requirement to make the theory work.



I don't think you quite understand evolutionary theory.


@TakeThatDarwin on twitter keeps me entertained/saddened

I'm assuming Manc33 thinks the Moon landings were hoaxed too.
by jochta
18 Jun 2015, 11:42pm
Forum: Fun & Games
Topic: Here's a puzzle for you...
Replies: 303
Views: 25643

Re: Here's a puzzle for you...

Manc33 wrote:Why is the moon transparent in the daytime, you can see blue sky behind it?

Why have amateur astronomers reported being able to see stars through the moon's dark parts at night?

Every answer and I mean every one, is a "fob off" type answer. Yes you can photograph the moon, but that doesn't prove it is a ball made of rock when it is also transparent in the daytime and night time. Rock isn't transparent. :wink:


It's not transparent...

https://www.youtube.com/watch?v=L7fwcy-W4hE

https://www.youtube.com/watch?v=FWsuubgKHKU

https://www.youtube.com/watch?v=bWYAmzORNkg

https://www.youtube.com/watch?v=NozCDK8OICU

...and many many more. I'm involved in the timing of these events. I'm not aware of any amateur astronomer who has reported seeing stars through the Moon, care to cite an example?
by jochta
18 Jun 2015, 11:21pm
Forum: Fun & Games
Topic: Here's a puzzle for you...
Replies: 303
Views: 25643

Re: Here's a puzzle for you...

Manc33 wrote:If a theory in science is something that has been tested, then what do they call something not tested? Bunk?


A hypothesis.
by jochta
18 Jun 2015, 11:12pm
Forum: Fun & Games
Topic: Here's a puzzle for you...
Replies: 303
Views: 25643

Re: Here's a puzzle for you...

Vorpal wrote:A scientific theory cannot be proven, only disproven.

Yes, a scientific theory is different than the common use of the word theory. A scientific theory has to be testable. And the more evidence there is to support it, the stronger it is, and the more widely accepted.

But it is still theory, and it is possible that it will be disproven or modified by something that is observed in the future.


Many scientific theories are so well tested that any new evidence is very unlikely to alter them substantially. So to all intents and purposes they are fact, e.g. the heliocentric theory.
by jochta
18 Jun 2015, 8:27pm
Forum: Fun & Games
Topic: Here's a puzzle for you...
Replies: 303
Views: 25643

Re: Here's a puzzle for you...

The definition of scientific theory is VERY different to the everyday definition of theory

Image
by jochta
17 Jun 2015, 4:39pm
Forum: Cycle Camping sub-forum
Topic: lidl self inflate camping mat
Replies: 16
Views: 1797

Re: lidl self inflate camping mat

johnmillward74 wrote:Yeah, I know very little about bikes. It was ordered from the internet - me and a mate assembled it a day before I set off for Land's End.....I realised something was wrong when my feet started touching the mudguard going round tight corners.....ha ha


Oops! Hope it's right now!

Oddly they appear to be the right way round in this photo (http://timetogetouttahere.co.uk/punctures-and-pain/) but the mudguard stays are facing forwards! The mudguards should be fixed to the holes near the dropouts (ideally with quick release devices). The hole through the fork and on the lug halfway down the fork are for fitting panniers.

You need to get a stem cap too as that holds the steerer on! At the moment the forks are hanging off the stem bolts.
by jochta
17 Jun 2015, 4:31pm
Forum: Cycle Camping sub-forum
Topic: lidl self inflate camping mat
Replies: 16
Views: 1797

Re: lidl self inflate camping mat

Vantage wrote:
johnmillward74 wrote:1.1kg sounds a bit hefty to me if every gram is crucial.

I am looking at this one http://www.gooutdoors.co.uk/hi-gear-ult ... at-p287153 admittedly more expensive, but weighs in at only 680g . . .


Having had a quick nosey through your blog I can't help but notice, but whats going on with your forks? They look back to front.


They are backwards and the mudguard is fixed using the pannier mounting points (and with no quick release if something gets jammed under it). The mudguard mounts are visible pointing the wrong way in one of the other photos. Another photo also shows a missing stem cap. That must be very twitchy to ride.
by jochta
15 Jun 2015, 10:10am
Forum: Fun & Games
Topic: Here's a puzzle for you...
Replies: 303
Views: 25643

Re: Here's a puzzle for you...

Here is a composite* image of the Moon I took on 26th April...

https://flic.kr/p/skaGxt

Here's another composite* image of the Moon I took on 29th April...

https://flic.kr/p/s6GPpk

They clearly demonstrate the phenomena known as libration (note the small foreshortened mare at the 1'o clock position is further onto the visible lunar surface on the 26th). Libration is caused by the Moon's orbit around the Earth not being exactly circular (it's an ellipse) which means we can see more than 50% of its surface as we can see "around the side" from time to time. It also proves that the Moon is a sphere. I didn't need NASA to tell me anything or to look up anything. My own observations, my own interpretation.

Still waiting for the explanation on how libration works if the Moon is a flat disc as mentioned several pages ago.

*composite = lots of smaller images stitched together to make one large image, like a panorama image, a standard technique and I suspect this is what NASA means by composite to get a full disc image of the Earth from space in some circumstances.
by jochta
12 Jun 2015, 10:22pm
Forum: Fun & Games
Topic: Here's a puzzle for you...
Replies: 303
Views: 25643

Re: Here's a puzzle for you...

Someone explains the maths to the Humber estuary one in the comments for you. And BTW none of these videos are any use whatsoever if there's no mention of refraction in the atmosphere https://en.wikipedia.org/wiki/Atmospheric_refraction

Libration?
by jochta
12 Jun 2015, 8:45pm
Forum: Fun & Games
Topic: Here's a puzzle for you...
Replies: 303
Views: 25643

Re: Here's a puzzle for you...

https://www.youtube.com/watch?v=U-CKunawlhA

Oh dear, the Earth appears to be curved...

Still waiting for my libration explanation.
by jochta
11 Jun 2015, 11:07pm
Forum: Fun & Games
Topic: Here's a puzzle for you...
Replies: 303
Views: 25643

Re: Here's a puzzle for you...

Manc33 wrote:
jochta wrote:The comment about the shape of glass in aeroplanes causing the Earth to appear curved is just taking the ****.


Why?


Do you know how glass and refraction works? Do you know the shape, density and curvature of the glass used in aeroplanes? Funnily enough when the aeroplane is on the ground nothing on the ground looks distorted. Funnily enough the pilots looking through different shaped glass see the curvature. Funnily enough even when there isn't any glass you can see the curvature.

<moderated> and refuse to acknowledge any of the evidence produced above. I'll give you another chance. Care to explain how libration works on the Moon if it's a flat fixed disc. I don't need anyone else's word for it, I can measure libration for myself.
by jochta
11 Jun 2015, 10:39pm
Forum: Fun & Games
Topic: Here's a puzzle for you...
Replies: 303
Views: 25643

Re: Here's a puzzle for you...

I'm beginning to think Manc33 is just keeping the argument going. He/she conveniently ignores every piece of evidence posted that answers his/her questions. The comment about the shape of glass in aeroplanes causing the Earth to appear curved is just taking the ****.

I can do my own experiments in my back garden that prove the Moon is spherical. I don't need to rely on what other people tell me. I can prove the hypothesis for myself.
by jochta
11 Jun 2015, 5:37pm
Forum: Fun & Games
Topic: Here's a puzzle for you...
Replies: 303
Views: 25643

Re: Here's a puzzle for you...

Manc33 wrote:This guy debunks "Ten reasons the Earth is round" pretty easily...

https://www.youtube.com/watch?v=dWdjOlJRRJo


Really? He fails almost immediately with the Moon is a disc. Explain libration and foreshortening. My telescope doesn't have a convex lens and it clearly demonstrates that the Moon and planets are spherical.

Lunar eclipses appear orange or red due to the Earth's atmosphere. If you were stood on the Moon during an eclipse you would see all of the Earth's sunsets and sunrises simultaneously as a red ring around the edge of the planet. That light is what falls on the Moon due to refraction.

Boat sinking below the horizon looks the same through a telescope as it does without. No idea what he's on about there.

Can't believe I'm trying to defend the Earth is round.
by jochta
10 Jun 2015, 5:14pm
Forum: Fun & Games
Topic: Here's a puzzle for you...
Replies: 303
Views: 25643

Re: Here's a puzzle for you...

Manc33 wrote:They could be floating a model around up there, telling you it is 300 feet wide (not 30 feet wide) and making you think it is ten times further away. Same with the sun, they say we can triangulate it and work out how far away the sun is - how when no one knows how big it is?


http://www.astronomyforbeginners.com/as ... owknow.php

Size of the Sun is irrelevant to calculating how far away it is. It's simple maths and was solved in 1672.
by jochta
10 Jun 2015, 5:07pm
Forum: Fun & Games
Topic: Here's a puzzle for you...
Replies: 303
Views: 25643

Re: Here's a puzzle for you...

Manc33 wrote:You can't take your own, I am talking about the whole Earth in the frame, proving there's a craft far out enough to photograph it that way. Same with videos, I don't want close ups - I want the full Earth in the frame, turning, filmed for at least 6 hours, then speeded up so we can see the changing cloud formations.


http://svs.gsfc.nasa.gov/cgi-bin/details.cgi?aid=1373