Zem-Tech

To date, over 4 million photos taken by humans from space have been collected. These photographs are taken for many purposes, from artistic to the scientific, and help to show how our planet changes over time.

Stennis Space Center has long been known as the agency’s largest rocket testing facility and they have been extremely busy with the testing of the upgraded RS-25 engines. In fact all RS-25 Engine testing happens exclusively at Stennis Space Center! If these look familiar to you, it may be due to the fact that they were used as the space shuttle main engine for the last 30 years. Compared to the 3 RS-25 engines that the space shuttle had the SLS will utilize 4 of them to produce 2 Million pounds of thrust. The thorough testing of the RS-25 plays an essential role in upholding NASA’s high standards of efficient and reliable engines.

Intrauterine Insemination (IUI) for Pregnancy - Step by Step Guide - 3D Animation

Using state of the art 3D animation techniques, this video shows the anatomy of the heart. Includes close ups of the superior vena cava, rights and left atrium, the valves, the ventricles and the pulmonary artery. Please note: this video contains no audio description or captions. Your heart is an extraordinary machine - enjoy the visual showing you how it works :)

NASA videos

#scienceexperiment, Short video viral new science technology video