The Galton board is an upright board with evenly spaced nails driven into its upper half. The nails are arranged in staggered order. The lower half of the board is divided with vertical slats into a number of narrow rectangular slots. From the front, the whole installation is covered with a glass cover. In the middle of the upper edge, there is a funnel in which balls can be poured, the diamete...

T he role of medical devices, such as bronchoscopes, in the transmission of healthcare-associated infections (HAIs) has long been recognized, however, the evidence that environmental and medical equipment surfaces play a role in the transmission of HAIs has been weak. Studies have demonstrated that pathogens can be transmitted from surfaces to personnel and patients, and that these pathogens ar...

Abstract. MotoGP class motorcycles rely on carbon braking system to cope with their incredible acceleration capability and high speed. Hence, assessing the torque generated by front discs is a key improve vehicle performance. As direct measurement of not allowed during races, its value may be estimated through physical model, using as inputs brake fluid pressure (monitored board), geometry fric...