Recent content by and7barton

"Dark Part" ? - The times I read this "Dark Side" nonsense - The Moon experiences day and night just like the Earth.

What would be the result if the diamond were viewed in a vacuum ?

I've occasionally wondered if say, an ant, can get a headache... or a honey bee perhaps feel a bit off-colour and take a day off, staying in the hive. I'm not being frivolous here... it's a serious thought I sometimes have.

I recall many years back, we stocked in the lab I worked in, Bromine in solution in water. Extremely concentrated to the extent that it "Smoked" when you removed the stopper. It had to be stored in a chiller in a bottle with a ground-glass stopper. The colour was a very deep red. Vile stuff. The...

If you are floating weightless, but within your space station... in other words, in a breathable normal atmosphere, you could propel yourself from point A to point B by cupping your hands and paddling - in other words, "Throwing" handfuls of air as you would throw water when swimming. You'd...

Thanks - I've discovered though, an issue with a pair of x80 eyepieces - They won't focus on infinity. Screwed right in, they hit the end stops and are still blurred. Focussed on a nearer object they give incredible detail but there's a scarcity of astronomical objects 300 yards away. I can't...

Yes ! - Unfortunately, Jupiter isn't favourably positioned at the moment. It's very low in the Western sky at dusk. I've seen several of Jupiter's moons with ordinary 10x50 hand-held binoculars in the past so I'm hoping for impressive results.

After a well-known store told me that their experience of the Helios binoculars was "Not positive", I decided to go for the Lunt instrument. I've had it just over a week now. The performance is superlative. It showed setting Jupiter as a nice disc through a hazy sky at x80 though my cradle...

I have a massive single-pillar mounting with a cradle that will accept these large binoculars so the weight isn't an issue. I've had in the past an 8 inch reflector and later, a 10 inch. I was never too happy with the awkwardness of certain viewing angles and the single-eye viewing meant I...

I was about to purchase a pair of Quantum 5 binoculars, when I read this in a review - "Strangely, the view through the eyepieces seemed distant, as if we were looking down a short tunnel". This was a rather concerning observation to make ! These binoculars were reviewed using the supplied x20...

I think V1, being "over the hump" of the loop, and too low down, wouldn't prevent any syphoning, at least until the water level in T1 had lowered to be level with the tapping, at which point air would be sucked down V1 and break the syphoning. The latter situation might well apply to V3 too...

Ah. I see now what your diagram means. Those orange lines you've put in, I assumed they were just pointers to the position of the vents... You mean, they are actually depicting the vent pipes themselves ? If that's the case, then here we go again - I'd suggest that V2 and V3 would be fine to...

V3 would drain off T1 simply by gravity, not syphonage. The water would simply leak out of V3. V1, if the water in T1 became high enough to run over the high loop, would not operate as a syphon breaker, but would probably leak water out of it, in addition to some water running down into T2...

I'd have thought that only V2 would be workable - Both V1 and V3 would drain down the upper tank. The top opening of vent V2 could be located at any height, provided it's attached to that pipe anywhere higher than the liquid level in T1.

My understanding is that as you progress downwards through the atmosphere, under the increasing pressure, the atmosphere (mainly Hydrogen), gradually tends to become liquefied and eventually take takes the form of a solid metallic hydrogen. Beneath that, and probably mixed with it to an extent...