Yes, by using both pacers and wind blockers, the Nike attempt wouldn't have counted as a world record. At one point it was considered that a sub-4 minute mile was scientifically impossible. The science here would be more reassuring if they talked about that fancy equation, and how it matches various real world runners very well. For example, runner A has a VO2 max of 60, and an efficiency of 95% of theoretical peak. It should be impossible for him to get below the equation's theoretical best time of 2:07, but the best in the world with those stats should get close. Science is all about building a model you think is representative of real life, then test it. I don't see any testing of the model here to prove its validity.

Pistons vs Pacers fight

It is meaningless to take down a DOJ front page that does nothing. If they snarled access to PACER, that would be highly inconvenient.

Tolkiens pacing was terrible

I'll dispute that. Story pacing is highly dependant on the reader's level of immersion, and Tolkien was attempting a deeply immersive story where the 'pacing' was largely irrelevant. Many people are quite jaded in this regard, and if the plot isn't moving along at a brisk pace they lose interest. That isn't necessarily the fault of the author, but a matter of a lack of tolerance/patience on the reader. No work of literature can satisfy every reader in that regard - so the end result of whether a book is properly paced is highly individualistic. You have writers on both extremes. Some move so fast that the reader feels like the story is choppy and shallow. Then you have guys like Jordan who spend so much time on so much background that the plot is almost utterly lost. I think Tolkien strikes a masterful middle-ground where he provides depth of background and detail, while not having so much that the average reader feels the plot is moving too slowly. Again, that isn't universal because everyone is different - but the fact that LOTR has endured the test of time and remained a classic proves that it is an assessment that applies to 'most' people.

and some of the characters (looking at you, Tom Bombadil) add nothing to the story.

Depends on what you mean by nothing. The Old Forest, Bombadil, and the Barrow Downs are chapters that some people don't get. If the hobbits had just gone straight to Bree then a lot of people would be happier. It can be argued, but Bombadil gives some background to Middle Earth that Tolkien felt was important. For him (JRR) the work was a literary exercise in establishing what he felt were 'lost' Anglo-Saxon mythology. Iarwin Ben-Adar was part of that world for him, and a part that he felt mattered. He is referenced in the Council of Elrond, and here and there in other parts of LOTR. He may fill no vital plot function, but he certainly adds to the story (not to mention background on the Northern Kingdom, and the Westernesse blades).

The first half of book 6 is essentially "Sam and Frodo keep walking to mount doom", but it really drags.

I felt quite the opposite. I thought that the chapters of Sam & Frodo walking to Mt. Doom were rather a breakneck pace compared to what was happening. But at that point JRR is breaking down both Frodo and Sam physically and spiritually, so it can't just be a rapid "Poof! We're at Mt Doom now!" thing. It had to be a hot, blistering, difficult slog. For it to only be 2 chapters was actually pretty breif I thought. Escaping Cirith Ungol took a chapter - then two chapters were them walking and Mt. Doom itself. All in all I thought it went pretty fast.

It all depends on what folks like, really. Some people can't stand it when Tolkien takes 2 pages here and there to describe the landscape of the Woody End, or a couple pages there to talk about some bit of Rohan's history, or whatever. Some people love it. I personally felt that JK Rowling's pacing blew chunks because she spent tons of time focusing on bullcrap character junk (mostly Harry whining). But some readers just eat that stuff up, so I have to allow that my personal tastes cloud my judgement on Rowling's pacing. It's a matter of taste. What seems irrelevant to you may be pure gold to someone else.

Jackson and Walsh's story is better structured

Don't get me started on Jackson & Walsh. I liked the LOTR movies generally, but these two ham-hands did some pretty awful writing considering the pure perfection of the source material. One example: Aragorn's perfect speech, "We shall make such a chase as will be accounted a marvel among the three kindreds - elves, dwarves, and men. Forth, the Three Hunters!" was changed to the god-awful, "Let's hunt some orc!" I could literally go on for hours listing scripting crime after crime. Jackson/Walsh were NOT either masterful writers, or pacers. When they stuck to the story and didn't jam thier fumble-witted fingers into the pie it was great. The more they took "creative license", the worse it got.

don't forget to check the, maybe even better, song 'Pacer' by this band: http://www.videosift.com/video/The-Amps-Pacer

I bet it still handles better than my Pacer.