Jewel box

Jewel box or Jewel Box can mean

Jewel Box (video game)

Jewel Box is a computer game developed by Varcon Systems for the Macintosh.

Gameplay

Colored gems fall from the top of the screen, and the player must manipulate them to form patterns that erase themselves. When the playing area fills up with gems, the round is over. Special gems cause different things to happen. The player must manipulate the jewels to form lines of three or more horizontally, vertically or diagonally. Jewels are affected by gravity, allowing the player to set up chain reactions which multiply the value of the gems matched. When the playing area is filled, it is cleared and the player loses one life - unlike Tetris, the player is given three lives in each game, and the opportunity to earn additional lives by reaching points milestones. Gems are worth different amounts of points, with black onyx-like stones being the most valuable.

The game included an easter egg where matching three black jewels on the bottom row of the play area resulted in a huge points bonus. This feature could be manipulated by canny players to achieve extremely high scores.

Jewel Box (star cluster)

The Jewel Box, Kappa Crucis Cluster, NGC 4755, is an open cluster in the constellation Crux, originally discovered by Nicolas Louis de Lacaille during 1751–1752. This famous cluster was later named the Jewel Box by Sir John Herschel when he described its telescopic appearance as "...a superb piece of fancy jewellery" It is easily visible to the naked eye as a hazy star some 1.0° southeast of the first-magnitude star Beta Crucis. This hazy star was given the Bayer star designation Kappa Crucis, from which the cluster takes one of its common names. The modern designation Kappa Crucis has been assigned to one of the stars in the base of the A-shaped asterism of the cluster, the third brightest cluster star (HD 111973, HIP 62931, HR 4890), located at the base of the right leg of the A. This is a blue supergiant of spectral type B3Iae, shining at the apparent photometric visual magnitude of 5.94V. Two other cluster stars are brighter than κ Cru, namely, 5.77 magnitude star HD 111904 (HIP 62894), at the tip of the A, and HD 111613 (HIP 62732) at 5.75, which is 15 arc minutes beyond the asterism toward Beta Crucis.