Larger Resources

Image Sequencing

Submitted by jithin on Mon, 08/21/2017 - 15:58
Full description: 

The Image Sequencing content type challenges the learner to order a randomized set of images according to a task description. 

This content type is developed by Jithin under Learning and Media Lab of ICFOSS

Learn how to create Image Sequences in this tutorial.

Would you like to create content like this on your own?

Get started

Register on H5P.com to start creating H5P Interactive content. Your content can be accessed via direct link, embeded, or inserted into any learning management system that supports LTI integration.

Microscope Zoom

Submitted by otacke on Wed, 05/17/2017 - 11:12
Full description: 

Diatomaceous earth, also known as diatomite or kieselgur, as viewed under bright field illumination on a light microscope. Diatomaceous earth is a soft, siliceous, sedementary rock made up of the cell walls/shells of single cell diatoms and readily crumbles to a fine powder. Diatom cell walls are bivalve, i.e. made up of two halves, and are made up of biogenic silica; silica synthesised in the diatom cell by the polymerisation of silicic acid. This sample consists of a mixture of centric (radially symmetric) and pennate (bilaterally symmetric) diatoms. The primary uses of diatomaceous earth are for cleaning (scouring), filtration, heat-resistive insulation and as an inert absorbent substrate. One of the most famous uses was by Alfred Nobel who developed dynamite; a mixture of diatomaceous earth and nitroglycerin. This image of diatomaceous earth particles in water is at a scale of 6.236 pixels/μm, the entire image covers a region of approximately 1.13 by 0.69 mm.

Pages