Gravity is one of the four fundamental interactions that exist in nature It also has the distinction of being the oldest weakest & most difficult force to quantize Understanding gravity is not only essential for understanding the motion of objects on Earth but also the motion of all celestial objects & even the expansion of the Universe itself It was the study of gravity that led Einstein to his profound realisations about the nature of space & time Gravity is not only universal it is also essential for understanding the behaviour of the Universe & all astrophysical bodies within it In this Very Short Introduction Timothy Clifton looks at the development of our understanding of gravity since the early observations of Kepler & Newtonian theory He discusses Einstein's theory of gravity which now supplants Newton's showing how it allows us to understand why the frequency of light changes as it passes through a gravitational field why GPS satellites need their clocks corrected as they orbit the Earth & why the orbits of distant neutron stars speed up Today almost 100 years after Einstein published his theory of gravity we have even detected the waves of gravitational radiation that he predicted Clifton concludes by considering the testing & application of general relativity in astrophysics & cosmology & looks at dark energy & efforts such as string theory to combine gravity with quantum mechanics ABOUT THE SERIES The Very Short Introductions series from Oxford University Press contains hundreds of titles in almost every subject area These pocket-sized books are the perfect way to get ahead in a new subject quickly Our expert authors combine facts analysis perspective new ideas & enthusiasm to make interesting & challenging topics highly readable ...

In Gravwell Escape from the 9th Dimension players command spaceships that have been pulled through a black hole transporting them into a different dimension With each ship lacking fuel to get home each player must collect basic elements from surrounding asteroids using the gravity of the dimension & what little resources they have in order to reach the warp gate that will take them home But in this dimension moving ships will travel towards the nearest object which is usually another ship & when those objects are moving either forward or backward reaching the warp gate isn&t always easy Time is running out to save your crew & your ship! As a grim reminder of the cost of failing to escape the frozen hulks of dead spacecraft litter the escape route – but with careful cardplay you can slingshot past these derelict craft & be the first to escape from the Gravwell! This easy-to-learn game uses 26 alphabetized cards to determine movement order & thrust; most cards move your ship towards the nearest object but a few move you away from it Players will draft fuel cards in each round – picking up three pairs of two cards with only the top card of each pile being visible – giving you some information as to which moves you can expect from the other spaceships During a round each player will play all of his fuel cards in the order of his choosing During each phase of a round each player will choose one card then all cards are revealed & resolved in alphabetical order When your opponents move in ways you didn&t expect you won&t always be heading in the direction you thought you would! Each player holds an " Emergency Stop" card that he may tactically play only once per round to avoid such a situation Whoever first reaches the warp gate wins but if no one has escaped after six rounds then the player who is closest to the gate wins ...

Nemesis Now are the masters of gothic fantasy art & modelling They've worked with the world's leading fantasy artists & designers to produce premium quality collectables & traditional giftware for over 15 years You'll fall in love with their stunning attention to detail & craftsmanship across a huge range of products SPECIFICATIONS testing NULL ...

Thanks to this little designer companion you will be able to experience magic move to Wonderland & be enchanted by the subtle glow of its flame If you do not fancy the White Rabbit feel free to choose a different colour & have fun with your new pet which will brighten your mood & your room for long hours Animals &38; Pet candles make a beautiful addition to any home Enjoy them lighting up a room or keep them as an ornamental piece With a great choice of animals &38; pets colours & finishes we think they bring a little style or humor anywhere! Who wouldn't want a bright yellow chicken candle! Unique Design Hand Poured Candle Hand Finished Candle Natural non-toxic materials Gift Box Candle Specifications Weight
- 928g Height
- 160mm Depth
- 160mm Width
- 135mm Burning time
- 70h




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The new scented concrete grenade candle is available in our full range of vibrant colours & is ideal for outdoor use this summertime The fragranced candles create a wonderful aroma whenever lit Each candle is packed in the single box & secured for shipping Guns &38; Ammo Candle Sculptures
- a selection of sculptures of famous guns & ammunition re-imagined as candles Each one is carefully designed before being cast & hand poured The candles are then hand finished using high quality non-toxic all natural materials The guns & ammunition range is available in a wide variety of colours & finishes such as steel chrome or gold They make a great gift for any shoot 'em up' fan! Or as a quirky ornamental sculpture piece Either way we think they're dynamite! Unique Design Hand Poured Candle Hand Finished Candle Natural non-toxic materials Gift Box Candle Specifications Weight
- 965g Height
- 140mm Depth
- 80mm Width
- 80mm Burning time
- 40h





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The candle in the shape of one of the most desired & most expensive works of oldsmithing the Faberg&233; Egg will send your spirit to a 19th century Romanov's mansion & will make you feel the atmosphere of all-night-long balls elegance & luxury Its character makes this candle a perfect timeless gift Each candle is packed in the single box & secured for shipping Unique Design Hand Poured Candle Hand Finished Candle Natural non-toxic materials Gift Box Candle Specifications Weight
- 1027g Height
- 210mm Depth
- 120mm Width
- 112mm Burning time
- 70h




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Hand gesture candles communicate a message without words These contemporary hand sculpture candles are made from non-toxic natural materials Each hand sculpture candle is hand poured & hand finished to a high quality Available in a wide range of colours including metallics & modern finishes such as chrome & rose gold Don&8217;t say it with flowers Say it with sculpted hand gesture candle A bold gadget for bold people Each of us sometimes feels like putting in a juicy F-word Instead of burning yourself out because of negative emotions burn out FCK! This adventurous design will make an ideal gift at a crazy birthday party Unique Design Hand Poured Candle Hand Finished Candle Natural non-toxic materials Gift Box Candle Specifications Weight &8211; 350g Height &8211; 222mm Depth &8211; 77mm Width &8211; 85mm Burning time &8211; 30h ...

Animals &38; Pet candles make a beautiful addition to any home Enjoy them lighting up a room or keep them as an ornamental piece With a great choice of animals &38; pets colours & finishes we think they bring a little style or humor anywhere! Who wouldn't want a bright yellow chicken candle! Unique Design Hand Poured Candle Hand Finished Candle Natural non-toxic materials Gift Box Candle Specifications Weight
- 450g Height
- 70mm Depth
- 153mm Width
- 120mm Burning time
- 38h




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Guns & Ammo Candle Sculptures
- a selection of sculptures of famous guns & ammunition re-imagined as candles Each one is carefully
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This unique decorative candle may either make you feel safer at home or bring an element of risk to your life After all explosion may come at any moment! Guns &38; Ammo Candle Sculptures
- a selection of sculptures of famous guns & ammunition re-imagined as candles Each one is carefully designed before being cast & hand poured The candles are This unique decorative candle may either make you feel safer at home or bring an element of risk to your life After all explosion may come at any moment! Guns &38; Ammo Candle Sculptures
- a selection of sculptures of famous guns & ammunition re-imagined as candles Each one is carefully designed before being cast & hand poured The candles are then hand finished using high quality non-toxic all natural materials The guns & ammunition range is available in a wide variety of colours & finishes such as steel chrome or gold They make a great gift for any shoot 'em up' fan! Or as a quirky ornamental sculpture piece Either way we think they're dynamite! Unique Design Hand Poured Candle Hand Finished Candle Natural non-toxic materials Gift Box Candle Specifications Weight
- 388g Height
- 143mm Depth
- 65mm Width
- 75mm Burning time
- 25hhand finished using high quality non-toxic all natural materials The guns & ammunition range is available in a wide variety of colours & finishes such as steel chrome or gold They make a great gift for shoot 'em up' fan! Or as a quirky ornamental sculpture piece Either way we think they're dynamite! Unique Design Hand Poured Candle Hand Finished Candle Natural non-toxic materials Gift Box Candle Specifications Weight
- 388g Height
- 143mm Depth
- 65mm Width
- 75mm Burning time
- 25h











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