Night and day difference, as you might expect. I still have the bucket spear laying around and will use it if I just need to handle a few rolls, anything more than 10 or so and it's worth changing out to the pin-on. I paid $179 for the bucket spear years ago at TSC, now it looks like it runs around $230.
Einstein's theory of special relativity sets of the speed of light, 186,000 miles per second (300 million meters per second). But some scientists are exploring the possibility that this cosmic speed limit changes.
A 4.6 second 40 yards has an average speed of 17.8 mph. In comparison, Usain Bolt produced an average speed of 23.5 mph for his world record 100 meters. This is equivalent to â¦ a 3.5 second 40 yards..