Whaaaat ... https://www.youtube.com/watch?v=peK3xwR4Hlg

A short film by Erpi Classroom Films Inc., that gives us early "evidences" of the spinning, ball earth. Do these really stand the test of time? ... https://www.youtube.com/watch?v=HSE0J8DSNXE

Description Graphene micromotors spin forward Chemical & Engineering News14,022 viewsJan 8, 2021 Researchers have found a way to make helical magnetic-responsive micromotors out of graphene. ↓↓More info and references below↓↓ Micromotors could someday zip through wastewater picking up pollutants or race through the bloodstream delivering drugs. Researchers have developed a number of strategies, such as chemical fuels and magnetic fields, to propel these tiny devices. Now, researchers have found a way to make helical magnetic-responsive micromotors out of graphene. The carbon material is attractive for micromotors because it’s easily functionalized and possesses a high surface area. Yet adapting current methods for making helical micromotors to graphene has been challenging. To that end, the team developed a cheap, simple method to pump out the coil-shaped motors. The team investigates the motors’ ability to navigate microchannels and also kill bacteria when armed with antibacterial silver. This work combines the advantages of graphene and magnetically-powered micromotors, which are more suitable for practical applications such as environmental remediation and biosensing than chemically-powered motors, says Wei Gao, a microrobotics expert at the California Institute of Technology. References: Graphene-Based Helical Micromotors Constructed by “Microscale Liquid Rope-Coil Effect” with Microfluidics | ACS Nano https://pubs.acs.org/doi/10.1021/acsn...

This program reveals the discoveries of a forgotten genius, many of which went virtually unnoticed for nearly a century. Nikola Tesla is considered the father of our modern technological age and one of the most mysterious and controversial scientists in history. How did this obscure visionary from what is now Yugoslavia lay the foundation for modern communications and energy research? Nikola Tesla s contributions to science and technology include the invention of radio, television, radio-astronomy, remote control and robotics, radar, medical x-ray and the wireless transmission of electricity. Many of Nikola Tesla's inventions were and in some cases still are considered a little too revolutionary by government agencies and the power brokers of the time and are discussed in detail in this program.