Mexico Cityoften provides high speeds though due toAutodromo Hermanos Rodriguez being 7,500ft above sea level, socarsareeffectively going through thin airmeaningtheyarelessimpacted bydragas there is less resistance. This is coupled with an extremely long 1200m main straight – one...
The humble Chevette was similarly little changed through the '80s, an increasing sales handicap in the fast-moving small-car sector. Model-year '81 was the production peak -- nearly 434,000 units -- after which assemblies tapered off steadily each year. Yet even the swan-song '86s managed...
“If you think of most of the aerodynamic surfaces on a car, you are really talking about drag and lift… drag and downforce. But on a bicycle, that aerodynamic surface is mainly turned vertical. So now your two big forces are drag and side force. Really, you’re basically looking at ...
Some of the pulleys photographed on this page are enormous: huge wheels and thick ropes. But you don't necessarily need big equipment to get the benefit of a pulley. What matters more is that you have multiple lengths of rope that can, between them, support the weight you're trying to ...
But most BASE jumping fatalities are due to object impacts, rather than freefalling to the ground. The need for fast parachute deployments compounds the problem -- these deployments can send the jumper off into an unintended direction, such as straight into a granite wall. Jumpers call this ...
If you're going fast, you're working against the force of air resistance (drag) pushing against your body. Sometimes there are bumps in the road you have to ride over; that takes more force and uses energy too (bumps reduce your kinetic energy by reducing your speed)....
birds are migrating, lizards are getting blown away by hurricanes. the signs are everywhere. animals are changing because of climate change. but few people expected it to happen so fast. [voiceover] we asked biologists thor hanson to walk us through three animal adaptation experiments. we know...
Lithium iron phosphate and ternary lithium are the most preferred mainstream formulas by major automobile companies. The former is low in price, stable and safe, but has low energy density and poor low temperature performance. The latter has high energy density and supports fast charging, but is...
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Roof racks, baskets, or roof-mounted storage systems can be handy car features; however, they cause more aerodynamic drag. More drag means more air resistance, resulting in more fuel needed to keep the vehicle moving. A road test conducted by Car & Driver found that uninstalling the roof rac...