Tight Turning Radius

Beware of the rear-end swing of the vehicle. The powered industrial truck is different from an automobile in that it has a very tight turning radius. Other workers or pedestrians can easily be struck by the vehicle. Figure 10-7 illustrates the tight turning radius of a lift truck. 

There are two types of stability checks that should be performed on each load. The first has to do with the tipping point of the load relative to the roadway as the load shifts due to the camber of the road. The second has to do with the turning radius of bolstered loads. As the load goes around curves, the C.G. shifts from being in line with the dollies, to an eccentric condition. In tight curves the... 

Figure 12.12. Illustration of a coiled polymer with a radius of gyration Rg- The diagram on the right indicates how a small part of the chain is composed of repeating units bonded by covalent bonds (straight-line segments) between C atoms (black dots), which can form the tight turns as a result of the flexibility of the polymer.

Figure 6.37 A left turn radius made very tight to reduce turning speeds...

As the positive charge of the nucleus increases, the electrical force exerted by the nucleus on the negatively charged electrons increases, too, and electrons become more tightly bound. This in turn reduces the radius of the orbital. As a result, each orbital shrinks in size as atomic number increases. For example, the 2s orbital steadily decreases in size across the second row of the periodic table from Li (Z = 3 ) to Ne... 

Subunit motion between two positions is also critical to the assembly of tobacco mosaic virus. In the partially assembled disks, having two stacked layers of 17 subunits each, the layers are wedged apart toward their inner radius. During assembly of the viral helix, RNA binds between the layers, which then clamp tightly together with 164 subunits per turn (Bloomer et al., 1978 Butler and Klug, 1978). 

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