What is DNA?

DNA is a nucleic acid that carries all of the genetic material necessary for cells to develop and function. The letters D-N-A stand for deoxyribonucleic acid. DNA floats freely in the cytoplasm of bacterial cells, and is found in the nucleus of plant, animal, and fungal cells. DNA is made of sub-units called “nucleotides.” Each […]

What is Photosynthesis?

Photosynthesis is the process by which green plants (and some bacteria) change light energy and carbon dioxide gas into usable chemical energy in the form of a sugar called glucose. The overall biochemical reaction for photosynthesis is: Carbon dioxide plus water yields glucose and oxygen gas. Light energy (usually from the sun) and a special […]

What is Fission?

Nuclear fission is defined as a reaction in which the nucleus of an atom is split, releasing energy and radioactivity. Fission occurs when an atom of a heavy element, that is, one that has a large atomic mass, splits into atoms of lighter elements. The products of the reaction have less mass than the starting […]

What is a Robot?

When we hear the word “robot,” many of us picture human-like machines made of metal. Although there’s some debate on what characteristics define a robot, most scientists agree that a robot is a machine able to automatically perform a task or series of tasks based on its programming and its environment. The idea of the robot […]

Facial reconstruction of Jane, a young female Jamestown colonist

   Facial reconstruction of Jane, a young female Jamestown colonist   Stephen Rouse, specialist in 3D modeling for medical applications, utilizes images from a CT scan to digitally reconstruct Jane’s splintered cranium so a 3D model of the skull can be generated. Ivan Schwartz of StudioEIS then explains how they are able to create a […]