... Energy Levels . ... Examining the Balmer formula and also the Ritz combination principle (further below), Bohr suggested that atoms could exist (even briefly) only in certain energy levels , and light was emitted only when an atom descended from some higher energy level to a lower one. ... When an electron descends from a higher energy (large n) to a lower one (smaller n), by Balmer's formula together with Einstein's, the energy of the photon emitted was exactly the amount of energy given up: . ...

... Listed below are questions submitted by users of "The Great Magnet, the Earth" and the answers given to them. ... In "The Exploration of the Earth's magnetosphere" on the magnetic environment of the Earth in space (a few Q duplicated here) . ... 11) Magnetic Shielding . ... 51) Can electricity be generated from the Earth's magnetic field? ... 9) Measuring Earth's magnetic field . ... 6) Reversals of the Earth's field (4 queries) . ... 42) Could generated electricity affect Earth's magnetic field? ...

Hubble Observations Shed New Light on Jupiter Collision . Was it a comet or an asteroid? ... Their initial findings, combined with results from other space-borne and ground-based telescopes, shed new light on Jupiter's atmospheric winds, its immense magnetic field, the mysterious dark debris from the impacts, and the composition of the doomed comet itself. ... Hubble's ultraviolet observations show the motion of very fine impact debris particles now suspended high in Jupiter's atmosphere. ...

Cosmic Research, Vol. 42, No. 5, 2004, pp. 435­488. Translated from Kosmicheskie Issledovaniya, Vol. 42, No. 5, 2004, pp. 453­508. Original Russian Text Copyright © 2004 by Veselovsky, Panasyuk, Avdyushin, Bazilevskaya, Belov, Bogachev, Bogod, Bogomolov, Bothmer, Boyarchuk, Vashenyuk, Vlasov, Gnezdilov, Gorgutsa, Grechnev, Denisov, Dmitriev, Dryer, Yermolaev, Eroshenko, Zherebtsov, Zhitnik, Zhukov, Zastenker, Zelenyi, Zeldovich, Ivanov-Kholodnyi, Ignat'ev, Ishkov, Kolomiytsev, Krasheninnikov, Kudela,