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Astronomy Help - Scale of Sun to pluto?

Suppose we want to construct an accurate scale model of the Solar System and we use an orange (diameter 10 cm) to represent the Sun. How far away would we have to put Pluto? You will need to use the fact that 1 Astronomical Unit is 23,400 times the radius of the Earth, the Sun has a radius 109 times that of the Earth and the semi-major axis of Pluto's orbit is 39.5 AU.

Start by converting the sun's radius into AU. You already know that the radius of Earth is 1/23,400 AU, and the sun's radius is 109 times that, so the radius of the sun must be 109/23,400 or 0.00465812 AU. Now I wasn't sure what you meant by "the semi-major axis of Pluto's orbit," but I mathematically confirmed that 39.5 AU is roughly 5.9 billion kilometers, which happens to be Pluto's average distance from the sun.

So now we need to look at how many times more this distance is than the sun's radius: 39.5/0.00465812 = 8,479.816.

Your orange's radius = 5 cm, or 0.05m so multiply that by 8,479.816.

0.05m x 8,479.816 = 423.99m

This is how far away from the orange the scale Pluto should be placed. You said, "I can't SEEM to get the right answer." Well, if you got the same answer as me, and you're doubting it, don't worry - it is accurate. You may have the wrong picture in your head from looking at solar system diagrams in textbooks which are never to scale. Obviously you would need a book of gargantuan proportions if even the sun in the diagram were dime-sized.

Now we could go on to scale Pluto itself. The sun's diameter is 607.64 times Pluto's. Your orange's diameter is 100mm so: 100mm/607.64 = 0.16mm. That's a VERY fine grain of sand... The thickness of my printer paper is 0.1mm.

Magniwork Review - Does It Work or a Scam?

Magniwork is an DIY guide which claims it can provide you with the step by step instruction to aid you create a device using the power of magnets to generate your own free electricity. Does it deliver this claim? We will talk about this product in this review to determine if it is a scam or does work for real. What magniwork does is to provide you with the methods which you can use to build your own magnetic generators to stay for long providing you with free source of energy for years to come.

Just as the name sounds, magnetic generators are powered by magnets. This justifies the reason for calling it a perpetual machine due to the fact that magnets don’t run down as a result of lack of power. This idea may look unrealistic but the fact is that there are proves of homes who made their own magnetic generators and are gaining the advantage of it.

Advantages

1. Magniwork works on the model of free energy by utilizing magnetism. Though it is not popular like wind and solar energy, but it works and it no scam. It offers a money back guarantee, so if you are not able to get what it claims, you can ask for a refund.
2. You will not require a huge sum of money to create it. You will require less than $200 to create your own magnetic generator which will run at least 50% of your energy requirement at home. If you build more of the magnetic generator, you could even power the whole of your home. It is one of the alternative means to live off the grid apart from solar and wind.
3. You do not need any special tools in order to create the magnetic generators. All you need are the tools which you initially have at home. They are simple tools required to create a device. The parts needed for it can be gotten for under $150 at your local hardware store. The guides to follow to build the magnetic generator are provided by magniwork.

Finally, the ideas of magniwork are no scam and it works. Some people are using this technology, so you should expect to get the free electricity it claims to give. If you need more review, then you can find it at my review site.

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pt 2/2 Ted Butler: "Silver will leave the solar system" | interview on KWN