A ball-and-stick model structure of non-polar, hydrophobic amino acid phenylalanine (Phe, F). Carbon in blue-grey, oxygen in red, nitrogen in green, hydrogen in silver. Drawn in Inkscape. amino acid amino acid Phenylalanine (amino acid)
None White Background Medical Equipment Close-up Close-up of a pair of scissors and a scalpel with a pair of tweezers
From A TOM CORBETT Space Cadet Adventure DANGER IN DEEP SPACE By CAREY ROCKWELL, 1953, Illustrations by Louis Glanzman. Project Gutenberg Transcriber's note: Extensive research did not uncover any evidence that the copyright on this publication was renewed. request completed science fiction media Danger In Deep Space 21
A diagram of the human intestines. 'Figura de Situ Viscerum' From Magnus Hundt's 'Antropologium de Hominis Dignitate, Natura et Proprietatibus', Leipzig, 1501. (Photo by Hulton Archive/Getty Images) Human Lung White Background Anatomy Figura De Situ Viscerum
red tools calamita horse shoe magnet horse-shoe Magnet clip art magnet horseshoe horse Magnet clip art
A simplified reflector telescope on tripod. Drawn in Inkscape. telescope science astronomy Reflector telescope
Frankenstein's Monster Silhouette frankenstein monster silhouette Frankenstein Monster Silhouette Profile Dingbat
Planet Pluto Bitmap Trace. This is the 180 degree view from Hubble Telescope. The Gimp was used to rescale and clean up image. The Original Public Domain file can be found at http://upload.wikimedia.org/wikipedia/commons/0/0b/Pluto-map-hs-2010-06-a-faces.jpg pluto pluton demoted Pluto 180 Degree Face From Hubble Telescope
science outline cell happy cartoon sticker spermatozoide biology sperm reproductive Happy Spermatozoide Cartoon clip art happy spermatozoide cartoon Science Outline Cell Happy Cartoon Sticker Spermatozoide Biology Sperm Reproductive
A diagram showing back and side views of the human skeleton, circa 1900. (Photo by Hulton Archive/Getty Images) White Background Anatomy Human Representation Human Skeletons
The genetic code, in DNA letters (T instead of U), and containing amino acids in three representations: full name, 3-letter abbreviation, and 1-letter. Black and white version. Drawn in Inkscape. How to read the genetic code: start from the center circle and go outwards. So, if the gene has an AGC, that means amino acid serine. A CGA means arginine. And three of the combinations are stop codons, which don't give any amino acid: TAA, TAG, and TGA. science genetics molecular Genetic Code BW
A ball-and-stick model structure of non-polar, hydrophobic amino acid alanine (Ala, A). Carbon in blue-grey, oxygen in red, nitrogen in green, hydrogen in silver. Drawn in Inkscape. amino acid amino acid Alanine (amino acid)
black science doctor cartoon free grey medicine stethoscope Stethoscope clip art stethoscope Black Science Doctor Cartoon Free Grey Medicine Stethoscope
Figure 8 maze usually used in conjunction with recording from various areas in the brain science learning memory Figure 8 Maze
None pandalus borealis shrimp crustacea animals science pandalus borealis shrimp crustacea animals science Pandalus borealis shrimp
I used Atom of Atheism made by Zanaq as published on Wikipedia and added a red feature and red to black gradient. http://en.wikibooks.org/wiki/File:Atom_of_Atheism-Zanaq.svg atom science atheism Atom of Atheism Remixed
A set of 3 Geometry Shapes floating in mid-air. Drawn with Inkscape. geometry geometric shape Geometry 1
Planet Pluto Bitmap Trace. This is the 90 degree face as taken by the Hubble Telescope. The Gimp was used to clean up, to rescale and reduce colours. The original public domain images can be found at http://upload.wikimedia.org/wikipedia/commons/0/0b/Pluto-map-hs-2010-06-a-faces.jpg pluto pluton demoted Pluto 90 Degree Face From Hubble Telescope
icon two near symbol people person blackboard mc2 discuss Two People Near Blackboard clip art people near blackboard Two People Near Blackboard clip art
view science diagram outline profile silhouette skull human cartoon from diagrams front medicine side views skulls Human Skull Side View clip art human skull side View Science Diagram Outline Profile Silhouette Skull Human Cartoon From Diagrams Front Medicine Side Views Skulls
A fuel cell test system where the supplied oxidant is pre-humidified. fuel cell system apparatus Fuel Cell Apparatus- Humidified Oxidant
A direct methanol alkaline fuel cell using an anion exchange membrane as the separator. direct methanol alkaline Direct Methanol Alkaline Fuel Cell- Anion Exchange Membrane
A direct methanol fuel cell with methanol and water crossover shown. direct methanol fuel cell Direct Methanol Fuel Cell
An experimental apparatus to measure the diffusion or permeability of a compound through a membrane using a mass spectrometer. science engineering diffusion Diffusion and Permeability Measurement Apparatus- Mass Spectrometer
Based on scant photos of Mr. Lovecraft, I approximated a profile. I think the likeness is recognizable, at least to a Lovecraft fan. horror science fiction pulp H. P. Lovecraft Profile Silhouette