Well, here's RHex RHex has trouble on rails on smooth rails, as you see here.

Ruby on Rails, or simply Rails, is an open source web application framework written in Ruby.

Listen to those rails a thrumming all aboard

It travels on rails down a suburban road, and the cars travel underneath it.

Here you can try easy obstacles such as terrain waves, jumps, boxes and rails.

Beneath the city's surface are billions of rats that proliferate around the train rails.

Also awaiting you here are rails and boxes on snow prepared by a Rolba snow machine.

Railroads Engine drivers and rail transit operators use sand to improve the traction of wheels on the rails.

The line originally used wooden rails and a hemp haulage rope, and was operated by human or animal power.

The IUCN Red List accepts Cheke's rationale for choosing the 1662 date, taking all subsequent reports to refer to red rails.

Around 2005, interest in the Ruby language surged in tandem with Ruby on Rails, a web application framework written in Ruby.

Even more rails became extinct before they could be described by scientists these taxa are listed in Late Quaternary prehistoric birds.

Also, amusement park railroads tend to be narrow gauge, meaning the space between their rails is smaller than that of railroads.

So it acts as a screen to protect the rail and the commuter, and not to have objects falling on the rails.

Ruby on Rails 3.0 has been designed to work with Ruby 1.8.7, Ruby 1.9.2, and JRuby 1.5.2 earlier versions are not supported.

The disproportionate number of rails in the list reflects the tendency of that family to lose the ability to fly when geographically isolated.

Dan Koditschek put some steel nails very simple version on the robot, and here's RHex, now, going over those steel those rails. No problem!

History David Heinemeier Hansson extracted Ruby on Rails from his work on Basecamp, a project management tool by 37signals (now a web application company).

Much like Pittsburgh, Birmingham's major industries were iron and steel production, plus a major component of the railroading industry, where rails and railroad cars were both manufactured in Birmingham.

Ruby is also supported natively on the IBM i.Ruby on Rails is also noteworthy for its extensive use of the JavaScript libraries, Prototype and Script.aculo.us, for scripting Ajax actions.

Lacking a geographically central organizing feature (such as a national capital), the rails were laid in webs, linking towns and markets within regions, regions within larger regions, and so on.

I try to figure out intellectually, philosophically, psychologically, what the experience of beauty is, what sensibly can be said about it and how people go off the rails in trying to understand it.

And there's a big telescope in Northern England called Jodrell Bank, and when I was a kid, it was amazing, because the moon shots would take off, and this thing would move on rails.

Many advanced motion picture techniques, which later became industry standards but which were groundbreaking at the time, were employed including unusual camera angles, smash cuts, extreme close ups, placing tracking shot rails within the bleachers, and the like.

U.S. Steel was regarded as a monopoly by critics, as the business was attempting to dominate not only steel but also the construction of bridges, ships, railroad cars and rails, wire, nails, and a host of other products.

Added to this, the natural factor, the Amazon forest, with its high level of rainfall and rapid growth, destroyed entire stretches of the rails, leveled ground, and bridges, reclaiming a large part of the way that people had insisted on clearing to construct the railroad.

Joaquina de Assis Brasil, deposed the historian Antônio Dias Vargas on February 16, 1969 in which The railway workers in finding the local adequate in the building of rails, uncovered two enormous rocks with its length on the other, with an estimate height of five metres.

Dumb All Over is a tirade on religion, as is Heavenly Bank Account , wherein Zappa rails against TV evangelists such as Jerry Falwell and Pat Robertson for their purported influence on the U.S. administration as well as their use of religion as a means of raising money.

Horsecars on tramlines were an improvement over the omnibus as the low rolling resistance of metal wheels on iron or steel rails (usually grooved from 1852 on), allowed the animals to haul a greater load for a given effort than the omnibus and gave a smoother ride.

Madeira Mamoré Railway The Madeira Mamoré Railway became known as the Devil's Railroad on account of having caused the death of around six thousand workers (in legends said to be one dead worker per railroad tie attached to the rails) was constructed by the United States corporation Percival Farquhar.

In the book, I go over controversies such as this one, and a number of other hot buttons, hot zones, Chernobyls, third rails, and so on including the arts, cloning, crime, free will, education, evolution, gender differences, God, homosexuality, infanticide, inequality, Marxism, morality, Nazism, parenting, politics, race, rape, religion, resource depletion, social engineering, technological risk and war.