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Wheels do more than go round and round

Science

Travel on stepped, bumpy, or rocky terrain can require oversized wheels and independent power delivery to each wheel, which can necessitate a larger vehicle. Lee et al. turned to ideas from origami to design a variable-diameter wheel. By using a folded, patterned sheet, they avoided the need for complex assembly or a large number of parts. The wheels are a combination of a stiff polymer film glued to a flexible mesh, so that the difference in stiffness controls the shape change. The wheel can double in diameter, with a corresponding reduction in thickness that allows a two-wheeled robot to climb steps, pass under a low ledge, and go through narrow gaps.


Joshua vs. Klitschko Round 8: Joshua not done yet; gets a close round

Los Angeles Times

Live updates from Anthony Joshua vs. Wladimir Klitschko: Joshua wins it in the 11th with TKO Get updates and analysis live from London with Los Angeles Times reporter Lance Pugmire for the heavyweight championship fight between Anthony Joshua and Wladimir Klitschko. The fight starts around 2 p.m. Pacific time, but check back beforehand for behind-the-scenes updates live from ringside. Joshua vs. Klitschko Round 8: Joshua not done yet; gets a close round This is the first time Joshua has seen an 8th round. The question is if Joshua has recuperated enough to stop Klitschko's momentum. Joshua seems to be getting himself back into this fight.


Joshua vs. Klitschko Round 9: Best round for Joshua since early going

Los Angeles Times

Live updates from Anthony Joshua vs. Wladimir Klitschko: Joshua wins it in the 11th with TKO Get updates and analysis live from London with Los Angeles Times reporter Lance Pugmire for the heavyweight championship fight between Anthony Joshua and Wladimir Klitschko. The fight starts around 2 p.m. Pacific time, but check back beforehand for behind-the-scenes updates live from ringside. Joshua throws some quick body shots. He is looking like he weathered the storm of the middle rounds. At the very least, Joshua has shown he is a warrior.


Golovkin vs. Jacobs Round 7: Another close round for Jacobs

Los Angeles Times

Follow all the action from Madison Square Garden live starting at 7 p.m. with the undercard fights. He looks much more comfortable now. Nice combo for GGG stops a bit of Jacob's momentum. Jacobs is having a nice round. Golovkin is still being very cautious.


Golovkin vs. Jacobs Round 6: Strong round for Jacobs

Los Angeles Times

Follow all the action from Madison Square Garden live starting at 7 p.m. with the undercard fights. Jacob is having some success with his left. GGG is being cautious of Jacobs power and size. Jacobs wins round easily and looks to be gaining confidence.