Researchers at Northwestern University have hatched a robotic replica of the ghost knifefish, an amazing sea creature with a ribbon-like fin, capable of acrobatic agility in the water.
The fish is distinctive in its ability to move forward, backward and vertically, but scientists didn't understand its vertical movement until the creation of its robot replica, GhostBot (shown below). They now know its vertical propulsion is caused by two waves moving in opposite directions, crashing into each other. One wave is pushed from the tail end, the other from the head; the two waves then meet in the middle, and create a mushroom cloud-like jet that pushes the fish upward.
Want to master Microsoft Excel and take your work-from-home job prospects to the next level? Jump-start your career with our Premium A-to-Z Microsoft Excel Training Bundle from the new Gadget Hacks Shop and get lifetime access to more than 40 hours of Basic to Advanced instruction on functions, formula, tools, and more.
Other worthwhile deals to check out:
- 97% off The Ultimate 2021 White Hat Hacker Certification Bundle
- 98% off The 2021 Accounting Mastery Bootcamp Bundle
- 99% off The 2021 All-in-One Data Scientist Mega Bundle
- 59% off XSplit VCam: Lifetime Subscription (Windows)
- 98% off The 2021 Premium Learn To Code Certification Bundle
- 62% off MindMaster Mind Mapping Software: Perpetual License
- 41% off NetSpot Home Wi-Fi Analyzer: Lifetime Upgrades