What if the Moon was a Disco Ball?

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What if the Moon was a Disco Ball?
What if the Moon was a Disco Ball?

DISCO BALL MOON INFORMATION:
The large mirror-tiles are 150km squared, and the small ones are 100km squared.
They are all 10 km thick with glass (with an IOR of 1.56)
There are 3012 mirrored tiles




When as near as the ISS, the Earth surface to disco-ball-moon surface distance is 420 km or so The orbital period in relation to the earth is realistic, about a 2.1 hour period.

When the disco moon is in low orbit, each reflection of the sun as a caustic is effectively a tiny sun, although you can never reflect enough light to get above the temperature of the surface of the sun (about 6000 degrees).

Since the sunlight is going through glass first, glass will in general filter out a lot of the UV, so your caustics shouldn’t reflect too much UV. The projection of a mirror-tile is larger than the projection of the sun when seen from low altitude.

When seen from far away the tile is smaller than the sun, and hence the caustic isn’t as bright . Basically the disco tiles are glass with a silvered backing. Some of the light will not penetrate the glass, and will be simply reflected off the first surface of the glass, This reflection strength increases as the angle of incidence approaches 90, generally referred to as a Fresnel reflection.. or rather the strength follows that equation. This reflected light will generally be full spectrum

The center of the giant flat mirror is orbiting at a distance of 2157.4 Km above the Surface of the earth, It’s diameter is 3474.8 km (same as the moon), It’s orbital period would be longer than the disco moon simply because it has less mass. But in this video it has the same orbital period as in the moon.

The actual mass of the giant mirror is absurd.. it’s way over­-engineered.. if a real one were to be built it wouldn’t have huge thick rims, it would more likely resemble a girder work, with Mylar films. Not huge death star like mirror with towers, and strobe lights (and a strange lack of solar panels)

Comments

comments

65 COMMENTS

  1. i only got it but i need to know, anyone got any cheats, hints, tips, codes etc please!

  2. My friends and I had a party tonight with a few strobe lights and a disco ball. Some people were doing some cool things under the light, and it looked AWESOME! Such as, making it look like they were floating by shuffling their feet, or doing a “formless dance” and shaking all over, using glow sticks to create a cool lighting effect…

    Any ideas? THANKS! 🙂

  3. So… my bday is coming up soon, and I have no idea what to do. I need something fun and inexpensive… and definitely not weird or babyish like Chuck-e-cheeses. I’m turning 12, and was thinking of watching Twilight and The Clique, drawing on pillowcases for a craft, eating pizza, salad, chips, brownies, ice cream, fruits, sodas/juices, and other snacks, and playing this game where you have two bags of weird clothes (coconut bras, ugly skirts, weird sunglass, hats, shoes, ties, belts) and you split into two teams and do a relay race. The girls would then sleepover, and we would do things like truth or dare, painting nails, playing cards, listening to music, and all the other stuff. We would eat donuts and milk and open presents in the morning.

    Does this sound like a good party? Or does it sound lame? Would people be bored- but I don’t think they would, b/c were just gonna be haning out and dancing and talking and laughing, and its gonna be 12 of my closest friends, so I think it would work out.

    Do you guys want to take something out that u think is weird? Change something? Add something? GIVE ME FEEDBACK!

    Thx so much guys!

  4. name as many “circle designs” you can think of…things that are inside a circle, but can also include things with outer designs (like a bomb or a flower) it can be natural or man-made.

    examples: smiley face, pizza, flower, bomb, iris (eye), etc.

  5. Who changed faces a few times during the dream?

    Like morphed into 3 different people?

    What does it mean, and is it rare?

  6. i just got a version5 i need some cheat codes

    please dont give my fake ones

  7. Well i’m turning sixteen and i want to have a party but i have no where to start.
    i live in a small hick town, and i’m not a hick.
    help? (:

  8. i want to purchase one because i heard great reviews on them (:

    i have fair to medium skin. im not very pale but im not dark dark either!

    I use a primer foundation & bronzer so which one should i get? and do i put it on before or after my makeup?

    in advance – thanks for answers <3

  9. 1.What kind of music is hottt?

    2. Do you like lights or disco balls at parties?

    3. Do you like huge speakers… or do you like to socialize?

    4. What else do you look for from a DJ?

  10. hip hop- r and b
    something along the lines of z100.
    new! and make sure it has hard beats. not a balled..

  11. I am very bored!!! I dont have any hamster toys, exept a ball, a wheel, and a cage! what caan I do/make to have fun with him? any games with a ball or wheel??? anything???

  12. I talk to my penis and play video games with it when it wins me at video games i get mad and i punch it really hard oh and we also play other types of games like monopoly,jump rope we also run outside play paddy cake and we always have fun adventures like one time we went to the moon and battled aliens do you do this with your penis.

  13. My best friend and I are planning to redecorate her daughters room. She wants it to have stars and the moon. I’ve seen a stars and moon lamp somewhere that is similar to the colorful disco ball lamp that are usually at parties. I need to know if anyone knows where I can find one. A website would be better. I’ve been searching and cant find one. I have found a turtle similar to what im looking for, but i doesnt rotate. Thank you in advance.

  14. I heard that the moon is actually a giant egg with some sort of beast embryo inside, and this moon-egg will hatch on Dec 21, 2012 and the “egg-shell” debris will fall toward the Earth and obliterate our planet.

  15. The 60s were vibrant with change; Apollo going to the moon, Steppenwolf born to be wild.
    Then suddenly the 70s brought gays disco roller skating and the Feminist Mistake.

    What caused the sudden tide shift?

  16. A satellite was placed in an orbit somewhat above the earth`s atmosphere, at a distance of 8000km from the centre of the earth. Determine the orbital period (in hours) of the satellite.

  17. I’m planning on having my sweet sixteen in a few months, but I’m not sure what to do. I don’t dance; I think ‘grinding’ and whatever is absolutely ridiculous and usually find myself sitting by myself or with one other person at most sweet sixteens. I prefer mingling rather than dancing. I had an idea to do a masquerade theme, but still, I don’t want top 40s music and grinding at my party. Any ideas? Thanks.

  18. who has read the hobbit i need some help with quotes and explanations and i would really appreciate it if someone could help me write a 4 line explanation for this quote
    ” It was like a globe with a thousand facets, it shone like silber in teh fire light, like water on the sun, like snow under the stars, like rain upon the moon”
    Thankyou very much and this is an assignment so i would appreciate it if you could just get me stared and i can do the rest so it wont be like someone doing my homework for me

  19. So in astronomy, I was asked to calculate the orbital period of a planet in a solar system with a star 9 times as massive as our sun. The planet is the same size as Earth and is orbiting at 1 AU. I got the correct answer (4), but I’m just not sure why that is the answer or how I got it. Can anyone please explain it to me?

  20. I recently got a tamagotchi v5 for Christmas and no matter how much I look, I can’t find any codes for my tamagotchi. Is There anything I’m doing wrong? please put special details to tell me what and why I’m doing wrong.

  21. Just wondering what you think of stephenie Meyers books …. twilight, new moon, eclipse and breaking dawn. Which is your favourite? Why?

  22. So… my bday is coming up soon, and I have no idea what to do. I need something fun and inexpensive… and definitely not weird or babyish like Chuck-e-cheeses. I’m turning 12, and was thinking of watching Twilight and The Clique, drawing on pillowcases for a craft, eating pizza, salad, chips, brownies, ice cream, fruits, sodas/juices, and other snacks, and playing this game where you have two bags of weird clothes (coconut bras, ugly skirts, weird sunglass, hats, shoes, ties, belts) and you split into two teams and do a relay race. The girls would then sleepover, and we would do things like truth or dare, painting nails, playing cards, listening to music, and all the other stuff. We would eat donuts and milk and open presents in the morning.

    Does this sound like a good party? Or does it sound lame? Would people be bored- but I don’t think they would, b/c were just gonna be haning out and dancing and talking and laughing, and its gonna be 12 of my closest friends, so I think it would work out.

    Do you guys want to take something out that u think is weird? Change something? Add something? GIVE ME FEEDBACK!

    Thx so much guys!

  23. i rented out a huge room for it and there will be 100-250 guests boys and girls and i don’t really have a budget but i can’t think of a theme please help!

  24. I don’t know what to get my boys for Christmas. They have to many toys. What would be good for an 8 year old boy besides toys?

  25. i was originally going to have a mystery diner, but the only one that fit my amount of people follows a story line i dont like. so now i need a new idea. im inviting around 25 friends, and around 10 family members.

    if you had a Sweet sixteen and loved it, or you threw on for your daughter or little sister, tell me what you did!! ive got 2 days to figure out EXACTLY what were going to do, then 20 days to prepare. Please help me out!! thank you 🙂

  26. Planet Geos in orbit a distance of 1 A.U. (astronomical unit) from the star Astra has an orbital period of 1 “year.” If planet Logos is 4 A.U. from Astra, how long does Logos require for a complete orbit?

    TB = years

    i got the right answer which is 8 years but i just guessed and i need to know how to get the correct answer

  27. An Earth satellite moves in a circular orbit at a height of 3200km above the Earth. What is its orbital period?

  28. I’m planning on having my sweet sixteen in a few months, but I’m not sure what to do. I don’t dance; I think ‘grinding’ and whatever is absolutely ridiculous and usually find myself sitting by myself or with one other person at most sweet sixteens. I prefer mingling rather than dancing. I had an idea to do a masquerade theme, but still, I don’t want top 40s music and grinding at my party. Any ideas? Thanks.

  29. PERSON TO GIVE –ALL– wins.best answer wins 10 points!!!!!!!!!!!!! what are All10 of the MOST EXPENSIVE APPS FOR IPOD AND IPHONE FROM APPSTORE

  30. An AU is defined as the average distance between the centers of the Earth and the Sun. Jupiter is on average 5.19 AU from the Sun. What is Jupiter’s orbital period around the Sun? How would Jupiter’s orbital period be affected if Jupiter were closer to the Sun?

  31. when i say smile, i mean like opening your teeth and happiness- i mean i want ideas about them including sikmiles and metaphors please and rest listed above

  32. Hello….i am having trouble on my physics homework, long story short i fucked around in all my 2 and a half years of highschool, and havent really learned the math to solve this problem…. dont worry im only 17 and can still save my self!! =D

    problem 1: At what distance above earth would a satellite have a period of 125 min?
    the mass of earth is 5.97 x 10^24 kg at first i tried to work it out with T=2pie squareroot of r^3 over (constant)(mass of central object)

    i got the part where i had to get that wretched r^3 to just r and out of that square root, i did some trys, but then what i knew was totally off judging by the high number which wasnt even close to what the mean radius of other problems that were correct, so i treid a different approach, t^2=(4pie^2) over G(constant) times M

    and so far i got 56250000sec= 39.44over 4.00 x 10^14 times r^3 which led me to…

    5.68 x 10^20 = r^3 and i tried to figure it out from there but got a wrong answer.

    Could some one be nice enough to help me understand how to solve this thank you!!!! its that wretched cube and square root i am having trouble with =(

  33. i am turning 14 on the 14th of august coming up and i dont have ideas i have some ideas and they are red carpet and techno parties but i don’t have anything other than that!! PLEASE HELP ME!!!

  34. I don’t know what to get my boys for Christmas. They have to many toys. What would be good for an 8 year old boy besides toys?

  35. Is it possible to find the orbital period of a planet just by knowing its semimajor axis?
    What.. By using

    period = (semimajor axis)^3/2??
    so if I measure the semimajor axis in units Km, what units will the period be given in?

  36. Anything that comes to mind which represents lack of subtlety.
    Like a train-wreck, a full moon, a grenade and so on.

  37. Well i’m turning sixteen and i want to have a party but i have no where to start.
    i live in a small hick town, and i’m not a hick.
    help? (:

  38. ok i need help i have no clue what im doing im turring 16 in jan and i have no clue what to do i live in mission ks and my best friend is helpping me i dont want to go over $700 and im going to have 80-100 guest plz help!!

  39. Assume the shuttle is in a circular orbit 200km above the surface…
    I need the way to the answer, not just the final answer…

  40. OKAY, so I’m going to host my 15th birthday party, and I want to have an awesome party!

    I don’t want to have a typical house party because it will just be hooking up/drugs/alcohol. I’d rather have an amazing party where it’s so cool people will actually have fun, and not resort to hooking up/drugs/alcohol.

    I was thinking about a foam party, with black lights/laser lights, but I don’t have an event space for this! Like this: http://www.youtube.com/watch?feature=player_embedded&v=5pF8URP8dOA

    WHAT ARE SOME GOOD IDEAS? It’s going to be in a loft-like space.
    THANKS! and by the way, my budget is around 500-600 dollars.

  41. The moon has light on night sky because it is the light reflected from the sun, and let’s say we cover the whole moon completely with mirrors, would the night sky become as bright as day time? Or not as bright as day time but is pretty bright enough so that you don’t even need streetlight to see and move around? I mean the sunlight is reflected back to earth with the mirrors on the moon.

  42. I was thinking about putting on roller skates. Whaddya think?
    Hm…. wanna come see hunny bee??

  43. i am turning 14 on the 14th of august coming up and i dont have ideas i have some ideas and they are red carpet and techno parties but i don’t have anything other than that!! PLEASE HELP ME!!!

  44. Has anyone here seen Pink Floyd Live? Has anyone here seen Syd Barrett when he was still with Pink Floyd? If you have could you tell me about that day please?
    Thank you!
    ~Lindsay

  45. i want to purchase one because i heard great reviews on them (:

    i have fair to medium skin. im not very pale but im not dark dark either!

    I use a primer foundation & bronzer so which one should i get? and do i put it on before or after my makeup?

    in advance – thanks for answers <3

  46. i am turning 14 on the 14th of august coming up and i dont have ideas i have some ideas and they are red carpet and techno parties but i don’t have anything other than that!! PLEASE HELP ME!!!

  47. A comet is in an elliptical orbit around the Sun with eccentricity e=0.35 and an average distance from the sun of 155 AU.

  48. I just don’t understand it… It’s a great song i just haven’t been able to figure it out yet

  49. OKAY, so I’m going to host my 15th birthday party, and I want to have an awesome party!

    I don’t want to have a typical house party because it will just be hooking up/drugs/alcohol. I’d rather have an amazing party where it’s so cool people will actually have fun, and not resort to hooking up/drugs/alcohol.

    I was thinking about a foam party, with black lights/laser lights, but I don’t have an event space for this! Like this: http://www.youtube.com/watch?feature=player_embedded&v=5pF8URP8dOA

    WHAT ARE SOME GOOD IDEAS? It’s going to be in a loft-like space.
    THANKS! and by the way, my budget is around 500-600 dollars.

  50. i rented out a huge room for it and there will be 100-250 guests boys and girls and i don’t really have a budget but i can’t think of a theme please help!

  51. these dont have to do with it being a surprise, but im throwing my friend a surprise birthday party and i want it Twilight themed, since she’s so obsessed, and i really need some ideas. she’s turning 15 if that helps anything

  52. i always see this light in the sky at night i know its not a party i know its not an airplane what is it?????????????????any ideas? p.s it looks like a disco ball but only one color

  53. I am having a girls only party this year for my 14th birthday. I would really like to do something special and unique (so no spa days, scavenger hunts, pool parties, beach parties, bowling, skating, etc…) I live in CA near the beach and about 2 hours away from LA if that helps. It will be in early September so it should be really hot outside. I would like to invite around 15 girls so any ideas? thanks!

    P.S. my past parties:
    -Amazing race
    – ice cream theme
    -Endurance (TV show)
    -camp-out in backyard
    – TV game shows

  54. whats earth’s orbital period & rotational period?
    (like the length of day and year?

  55. i am having my party in november and i need good ideas ! got my friends invite and she has the same theme so i can do that any more cause her party is right before mine! please help

  56. A newly discovered planet orbits a distant star with the same mass as the Sun at an average distance of 111 million kilometers. Its orbital eccentricity is 0.4.

    Find the planet’s orbital period.
    Find the planet’s nearest orbital distance from its star.
    Find the planet’s farthest orbital distance from its star.

  57. what would be the approximate orbital period (time for one complete orbit) for an apple placed in circular orbit around earth at the moons distance from earth?

  58. The moon has light on night sky because it is the light reflected from the sun, and let’s say we cover the whole moon completely with mirrors, would the night sky become as bright as day time? Or not as bright as day time but is pretty bright enough so that you don’t even need streetlight to see and move around? I mean the sunlight is reflected back to earth with the mirrors on the moon.

  59. I just don’t understand it… It’s a great song i just haven’t been able to figure it out yet

  60. So… my bday is coming up soon, and I have no idea what to do. I need something fun and inexpensive… and definitely not weird or babyish like Chuck-e-cheeses. I’m turning 12, and was thinking of watching Twilight and The Clique, drawing on pillowcases for a craft, eating pizza, salad, chips, brownies, ice cream, fruits, sodas/juices, and other snacks, and playing this game where you have two bags of weird clothes (coconut bras, ugly skirts, weird sunglass, hats, shoes, ties, belts) and you split into two teams and do a relay race. The girls would then sleepover, and we would do things like truth or dare, painting nails, playing cards, listening to music, and all the other stuff. We would eat donuts and milk and open presents in the morning.

    Does this sound like a good party? Or does it sound lame? Would people be bored- but I don’t think they would, b/c were just gonna be haning out and dancing and talking and laughing, and its gonna be 12 of my closest friends, so I think it would work out.

    Do you guys want to take something out that u think is weird? Change something? Add something? GIVE ME FEEDBACK!

    Thx so much guys!

  61. Calculate the orbital period of Pluto (in yr) from knowledge of G, the mass of the sun (M = 1.99×1030 kg), and the orbital radius of Pluto of 3.96×101A.U

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