A travel writer shares the backpacking checklist she used while on a 23-day trip through Southeast Asia. Here, shop the travel essentials she used to pull it off, including On running shoes, a ...

Schwalbe reinvents the valve and it's better than Presta, but is that enough to convince everyone to make the switch?

Abstract: Ultrasonic vibration has good prospects in precision assembly. In recently, the press-fitting of nozzle in the servo valve still needs manual operation. There are many disadvantages such as ...

Heart valves keep blood flowing in the right direction between the heart's four chambers. Mechanical valves last longer than bioprosthetic valves but require lifelong blood thinners. Most of the time, ...

At AARP we know that staying fit is one of the pillars of healthy living, and we want to help guide you on your fitness journey. Click below to find our comprehensive fitness offerings. Enjoy your ...