The Orbitron TM, a gallery of orbitals on the WWW: Ĭopyright 2002-2021 Prof. After a certain amount of aliens have been. If you are shot or hit an alien then you lose one of three lives. You start on the bottom of the screen and you can move in various directions as the aliens appear and you must shoot or avoid them. While still spherical, the lower s-orbitals (ġ s) is simpler since it has no spherical nodes. Orbitron is a single screen shooter where you are the last fighter pilot left to protect your planet, Hyperion from an alien invasion over various levels. While still spherical, the higher s-orbitals (ħ s) are more complex since they have more spherical nodes. Since for the 2 s orbital ρ = 2 Zr/2 = Zr ( Z = effective nuclear charge, r = radius in atomic units), then the node is at the radius for which (2 - Zr) = 0, that is, r = 2/Z atomic units. When (2 - ρ) = 0, then we must have a node. The origin of the spherical node becomes clear if we examine the wave equation, which includes a (2 - ρ) term. The shape on the right shows the nodal structure of the 2 s-orbital. That on the left is sliced in half to show that there is a spherical node in the 2 s orbital. Orbitron was designed so that graphic designers in the future will have some alternative to typefaces like Eurostile or Bank Gothic. It features four weights (light, medium, bold, and black), a stylistic alternative, small caps, and a ton of alternate glyphs. The image on the top is deceptively simple as the interesting feature is buried within the orbital. Orbitron is a geometric sans-serif typeface intended for display purposes. The blue zone is where the wave function has positive values while the white zone is where values are positive.įor any atom there is just one 2 s orbital.
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