... A sundial with a vertical pointer (" gnomon ") will indicate noon correctly when its shadow points north. ... Cut the paper along the marked line: one half will serve as base , the other will be used to construct the gnomon . In the gnomon part, cut away the two marked corners. ... With the page folded in its middle, cut out along the curved line , cutting a double thickness of paper in one cut. ... Score the other two secondary lines, then fold the gnomon sheet along them. ...

... A sundial with a vertical pointer (" gnomon ") will indicate noon correctly when its shadow points north or south. ... Cut the paper along the marked line: one half will serve as base , the other will be used to construct the gnomon . In the gnomon part, cut away the two marked corners. ... With the page folded in its middle, cut out along the curved line , cutting a double thickness of paper in one cut. ... In cut (4), the fin of the gnomon was separated from two pieces with curved outlines. ...

Additional Galileo Images of Europa . ... Lower resolution pictures of Pwyll Crater taken earlier in the mission show that material ejected by the impact can be traced for hundreds of miles across the icy surface of Europa. ... Also visible in this picture are complex ridges. ... This picture of Europa was taken by Galileo's Solid State Imaging system from a distance of 17,900 kilometers (11,100 miles) on the spacecraft's sixth orbit around Jupiter, on February 20, 1997. ... Ridges on Europa . ...

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,