The World's Most Unanswered Science Project

Questions and answers on the sharper edges of Science


Everyone who's just curious about science - up to the top expert on nuclear fusion - will find something here! Hundreds of the most interesting science questions are answered and are split into 3 categories: Light, Physics and Sound.

  • What weird and cool effects occur when two gigantic mirrors face each other?
  • What happens to water if you compress it more and more and more... (It can't just disappear)?
  • What's the temperature of a candle flame?
  • Can liquid diamond be made and if so, what temperature would be needed?
  • What on earth would liquid diamond or gold taste like if it was cool enough to drink?
    All of these questions and hundreds more will be answered!

    As this is an ongoing project, gradually, more and more questions are
    being answered - so if you have any of the missing
    answers to some of the questions, or if there's an
    answer you can clarify further (amusing anecdotes
    are welcome) then don't hesitate to contact me.
    Finally, if you're searching for an answer to a specific question you have in mind,
    then visit the sites dedicated to Q+A at the end of this page.

  • This symbol means that the question is difficult to find out in practise. However, through lateral thinking and common sense, an answer is possible. This symbol means that the question is nigh-on impossible to verify by experiment alone. However, through lateral thinking and common sense, an answer is possible.
    This symbol means that the question is delving into the theoretical realm and is once again difficult to test. The answer/s are possibly right - but not guaranteed! The ultimate! Questions with this symbol push the boundaries of theoretical knowledge - and are nigh on impossible to verify by experiment. Any answers are based on our current understanding of the universe - and thus are subject to error.





    Currently the following people have contributed to the answers.
    Special thanks go to:
    Victor Epitropou - Homepage
    Alastair Robinson - Homepage
    Miriam English - Homepage

    How many light bulbs would you need to have it as bright indoors as outdoors?
    Why are there 12 notes to the musical scale?
    Is there a limit to how sweet or sour something can taste?
    How many unique pictures could you ever see?
    Is there any way to scientifically prove that people have a 'soul'?


    Visit page

  • Mirrors inside mirrors
  • Switching off the sun
  • The deletion of the atmosphere and ozone layer
  • The non-contoured moon
  • The Eclipse
  • Noise from the eye
  • Unusual light filters
  • The Magnified Sun
  • Luminous Liquid Light
  • The Humble Light Bulb
  • Dazzling light and silhouettes
  • Can the blind see in dreams?
  • The Perfect Microscope
  • Effects of Speed of light at 1 MPS
  • Microscopes, light waves and perceived color
  • Multiple Focus Lens
  • Street Lamps, Sky and Auras
  • Soft Shadows and Light Sources
  • Colorless Gases and Liquids
  • Communication and Monitor Display Technology
  • Blue and Yellow really green??
  • Where is Magenta in the Colour Spectrum?
  • Reverse Colour and the After image
  • The Mirror Timebomb
  • Tasting the Impossible
  • Extreme Wavelengths of Light
  • Deadly Rays, Microwaves and Lasers
  • Light Waves and Heat
  • Tons of light and no heat?? Tons of heat and no light??
  • How many unique pictures could you ever see?
  • The poor green light on monitors



  • Visit page

  • Gravity of moon 'wrong'?
  • Diamond's melting point. Is Liquid Diamond possible?
  • Liquid Gold
  • Carrots, Karats and Carats
  • Moulding diamond
  • Diamonds and speeding bullets
  • Floating hollowed-out diamond-shelled spheres full of helium
  • Spherical repelling magnets
  • Magnets lasting forever and in space
  • Natural repelling or attraction of ANY substance
  • 'Cold' metal and heat conductivity
  • The taste of liquid nitrogen, oxygen, hydrogen and mercury
  • Deadly cold
  • Pins and needles
  • The shock of extreme hot and cold temperature
  • Bacteria and tooth decay
  • Fruit acid and tooth decay
  • Limit to how sweet or sour something can taste?
  • Limit to how acidic or alkaline something can get?
  • Tablespoon of salt fatal?
  • Air bombs useful for fires?
  • Momentous water gravity ball
  • Heat from sun
  • The fan's 'cooling' effect
  • Limit of speed through air with no protection
  • The crushing effect of air
  • Multi coloured flames
  • Temperature of candle flame
  • Increase of air pressure - like floating through porridge?
  • Super compressed air
  • The suction effect
  • Superfluids and other low viscous liquids
  • Gigantic water drops and other tenacious liquids
  • Super conductive materials
  • Lighter than air liquids
  • Faking gravity
  • Gravity conditions at center of Earth
  • Atoms and their 'stickability'
  • Mega heavy solids
  • Super fast rotating steel sphere
  • Space weighing machine
  • Elliptical and '3 dimensional' orbits - the lack of them
  • How can you move in space if there's no air to displace?
  • Ultimate transport
  • Delving into the metaphysical
  • Absolute zero heat
  • Atoms, surfaces and the bouncing effect
  • The liquid state of ice
  • Effects of gravity on Earth's spin and orbit NEW!
  • Effects on Earth without moon

  • Visit page

  • Planes and sudden over-head sound
  • The tinny earphones conundrum
  • A perfect melody?
  • How does something sound in...
  • The stereo effect and gauging direction
  • The perfect 'sound-o-meter'
  • Sound absorption materials
  • Loss of sound energy through heat
  • Deadly sound frequencies
  • The decibel and its measurement
  • Googolplex of volume
  • What is twice as loud?
  • Why are there 12 notes to the octave?
  • Heat and micro sound waves






  • More cool pages from Skytopia...


    Super Magnet


    Explore the colorful world built entirely using mathematical atoms and molecules. Pictures and animations demonstrate structures colliding and interacting.



    Light and Color Trivia

    Expanding on the questions presented here, this page offers a unique collection of articles about oddities in the science of colour and light.



    Greatest Optical Illusions

    The greatest optical illusions in the world, and unique to Skytopia, since we created them! Witness the Eclipse of Mars, and see the colour Green and Cyan as you have never seem them before.
    Survey - What do you think of the science questions and answers?
    Incredible! This site contains the cream of science trivia.
    Very interesting. I enjoyed the majority of questions.
    Interesting. I enjoyed quite a lot of the topics.
    Not bad. Some interesting questions.
    Sometimes boring. I have seen better elsewhere.
    Boring. I went to sleep half way through
    Bah - who likes science anyway?
    Comments (optional)




    Also look at people's comments here
    (automatic update of your own comments may take server a while)


    Other cool related web sites:

    www.newscientist.com/lastword A cool Q+A section - for all those 'small mysteries of everyday life'. The site itself is very comprehensive too, with up to date science news and much more.

    www.sciencenet.org.uk Another Q+A site with thousands of questions and a neat search feature. This is also the site responsible for the free telephone service - 'Science Line'.

    www.madsci.org/submit.html Yet another brilliant site dedicated to answering all your questions about science. This one contains over 25,000 questions, a comprehensive search feature and a forum-style approach to the answers.

    www.newton.dep.anl.gov/archive.htm Thousands more questions answered under various topics and sub-topics & search feature.

    www.thenakedscientists.com Excellent site with various science articles, a forum and an online radio archive - featuring movies, pictures and audio for download.



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