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Calculates weight and percent composition of chemical formulas and amino acids

Edits, modifies and views DNA sequences

Contour plots of 3D data, shown as contour lines in a plan view of the XY plane

African Geography Tutor is an educational game about this amazing continent

It can be used for teaching and studying high school and middle school math

Monitors and simulates models of transient systems

Windows

Windows Mac

TXTLABS

Don't Sleep!

Free

This app prevents your PC from going to sleep mode.

Free

View and convert Markdown documents on a Mac.

Free

This app helps you capture websites and save the results as PNG files.

Free

This app helps you capture the screen as a layered PSD.