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Engineering Your Own Spectrograph
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Educational Use
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Students use simple materials to design an open spectrograph so they can calculate the angle light is bent when it passes through a holographic diffraction grating. A holographic diffraction grating acts like a prism, showing the visual components of light. After finding the desired angles, students use what they have learned to design their own spectrograph enclosure.

Subject:
Applied Science
Engineering
Physical Science
Physics
Material Type:
Activity/Lab
Provider:
TeachEngineering
Provider Set:
TeachEngineering
Date Added:
10/14/2015
Opossum hearts hint at new ways of fighting cardiovascular disease
Unrestricted Use
CC BY
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This resource is a video abstract of a research paper created by Research Square on behalf of its authors. It provides a synopsis that's easy to understand, and can be used to introduce the topics it covers to students, researchers, and the general public. The video's transcript is also provided in full, with a portion provided below for preview:

"Heart disease is the leading cause of death worldwide. While people have benefited greatly from advances in drugs and surgery, one glaring problem remains: unlike the cells that make up our other muscles, once heart cells are gone, they simply can’t be regenerated. That is, unless you were just born. Studies show that muscle cells in the hearts of newborn mice, rabbits, and even humans can go on dividing for up to days after birth. And now, in what could be a new world record, scientists have recorded signs of regeneration beyond two weeks after birth in the South American gray short-tailed opossum. Their ability to replicate this feat in mice could point to new ways of healing the hearts of humans with cardiovascular disease. The experiments that led to these results were carried out by Wataru Kimura and colleagues at the RIKEN Center for Biosystems Dynamics Research in Japan..."

The rest of the transcript, along with a link to the research itself, is available on the resource itself.

Subject:
Anatomy/Physiology
Life Science
Material Type:
Diagram/Illustration
Reading
Provider:
Research Square
Provider Set:
Video Bytes
Date Added:
01/31/2023