Recent content by sophiecentaur

It's true that 'some people' came out with that idea all on their own. Most of us humble peasants had to be show it and for it to be explained to us So I'd say it's Unexpected. :wink:

It would be like trying a stand jump with a 80kg backpack. Special Forces ‘run’ with that sort of load. When I did my mountain backpacking I kept the load to below 20kg and there was a distinct absence of ‘skipping over the hills’. Some billions of years of our evolution was based on regular...

The energy needed to lift mass from zero height to h height (ending up stationary) would be W=mgh m=mass g is gravity and mg is the weight h is height That formula tells you that if you double g you will only attain half h which would imply that your "scaling down" would apply BUT...

It's the fact that space is expanding and the 'proper distance' of far galaxies is over 30GLy when the age of the Universe is around 13BY. Just a bit strange although perfectly reasonable in the light of what we know. Oh yes but people (not I) hang on to words like "constant". Again, it's a bit...

This is true and introduces an apparent paradox when considering the age of the universe and the distance separating us from some early objects. And there's that idea of the expansion phase at the formation. I'm not being a 'fussy customer' about this but it's quite hard to swallow / appreciate...

You could say the same about any measurement unit. We rely on past calibrations and our graphs etc. to give the distance from a given galaxy by looking up the red shift. There are many other forms of data which justify the use of the Hubble Constant (within the limits that it works for). This...

Maybe but most navigation instructions tend to be numerical - eg Heading and thrust. "Rotating the craft " would not be sufficient and they have to get it right. But I have never driven one of those things so don't listen to me. Edit: Then again; if you were in a polar orbit, which would ground...

This is very true. As with all astronomical measurements, existing measurement methods are used to find the distances of nearer objects (starting with measuring the diameter of the Earth and distances in the Solar System). Cepheid Variables (look it up) in our galaxy gave a distance measurement...

I take your point but why would there her any significance in this? In an early solar system there would have been a mix of small objects with an assortment of angular momenta; only a small majority being one way. Collisions and partial captures would end up producing a mature solar system with...

whoops! yes of course - a spherical concave mirror brings rays from an object near the centre to a fuzzy image off-centre. The focus gets worse for points near the surface. In terms of the charge and its virtual (opposite charge?) image, there would be attraction which would be strongest with...

'particularly' is the word. The more monochromatic, the more definite the nulls. Obviously, the first rings Newton observed were coloured but the wave model and th sharp nulls etc. involve an assumption about a single wavelength. Even today, has anyone actually done a calculation involving a...

To avoid confusion, it would be better not to use the word "colour' in this sort of discussion the way light of different wavelengths is independent of what happens to other wavelengths. Because most visible 'colours' can be mimicked by mixtures of other monochromatic sources the result of...

The method of images, as shown in your link, works for a plane reflector. The inside of the sphere is not a plane. The resulting image of the point charge inside is not a point but is distributed over all space at infinity. Using the 'lines of force' model, for any elemental area on the inside...

The term 'innovativer' implies it will work. Your idea is not founded on any real Science and will not work, for very good reasons. Microwaves increase the thermal energy of water. That doesn't involve the necessary forces to move the water. Actually, what you are suggesting doesn't follow the...

IMO this thread has taken us down a rabbit hole. The apparent magic of the retrograde orbit of Mars was a huge stumbling block for the Geocentric Universe model. Several hundred years ago, the Heliocentric model solved the 'anomaly. The term "retrograde" its really pretty irrelevant now. It...