Seca 213 Portable Stadiometer Mechanical - Range 20-205cm is a convenient mobile method of measuring height. • Simple and easy to set up – no wall fastening necessary. • Large floor plate ensures stability. • Result clearly visible while measuring. • Convenient and easy to transport.

We end this week within striking distance of where we began, with a host of beautifully illustrated machinery, most of it from the military realm. Although these illustrations present their subjects in a far more reserved manner than did the model kit box art we looked at on Monday and Tuesday, there's no denying the understated artistry in Denis Bishop's renderings of these historical vehicles and machines. More than a few friends who previewed these scans said Bishop's style brought to mind the work of Ken Dalison. I have to agree. Since all of these books were published in the early '70s, when Dalison was "making his mark" in automotive magazines, perhaps he was an influence on Denis Bishop. No info about the artist seems to be available anywhere online. Many thanks to my friend Bill Peckmann, who bought these books back in the '70s and kept them through all these years, and then dug them up and scanned them for us. Perhaps, as has happened so many times before, just posting these and Denis Bishop's name will lead to someone familiar with the artist getting in touch and telling us more. Meanwhile, here's one last visual treat to perk up your weekend... Bill Peckmann wrote, "The cover of the Denis Bishop book I sent you had a WW 1 carrier pigeon truck on the cover." "Well, when the book came out in 1970, I gave Rowland Wilson a copy of it, along with a joking dare. The off-handed dare was that he would be able to use that truck in a gag cartoon. I never thought he would be able to do it. Viola!" Many thanks Bill! You'll find many more beautiful Rowland B. Wilson cartoons at Michael Sporn's Blog, also courtesy of Bill Peckmann.

MECHANICAL ENGINEERING DESIGN BOOK – TMH BEARING DESIGN IN MACHINERY – AVARAHAM HARNOY MARK’S CALCULATION FOR MACHINE DESIGN MECHANICAL DESIGN – PETER CHILDS AutoCAD_Mechani…

Moment of inertia Newton's second law, Force = mass x acceleration, relates the acceleration that an object of a certain mass experiences when subject to a given force. There is an analogous relation between torque and angular acceleration, which introduces the concept of moment of inertia: Just as mass is a measure of how readily an object accelerates due to a given force, the moment of inertia of an object measures how easily an object rotates about a particular point of rotation. Thus, objects with a larger moment of inertia about a given point will be harder to rotate with a set torque. Correspondingly, a larger torque will cause a larger acceleration on a particular body. The moment of inertia of a body, which is always measured relative to a point of rotation, depends in general on the object's mass and on its shape. It is perhaps evident that for a single mass going in a circle of fixed radius, the greater the radius the harder it is to change the angular velocity. This is because the actual displacement, and hence linear velocity of the mass is proportional to the radius, so greater radius, for a given angular displacement means greater linear displacement. In an extended object the parts that are further from the axis of rotation contribute more to the moment of inertia than the parts closer to the axis. So as a general rule, for two objects with the same total mass, the object with more of the mass located further from the axis will have a greater moment of inertia. For example, the moment of inertia of a solid cylinder of mass M and radius R about a line passing through its center is MR2, whereas a hollow cylinder with the same mass and radius has a moment of inertia of MR2. Similarly when a spinning figure skater pulls her arms in to her body she places more of her body weight closer to the axis of rotation and decreases her moment of inertia. Moment of Inertia Formula The Moment of inertia is the property by the virtue of which the body resists angular acceleration. In simple words we can say it is the measure of the amount of moment given to the body to over come its own inertia. Its all about the body offering resistance to speed up or slow down its own motion. Moment of inertia is given by the formula Where R = Distance between the axis and rotation in m M = Mass of the object in Kg. Hence the Moment of Inertia is given in Kgm2.

Autonomous vehicles are at the heart of future mobility solutions. In the course of this, London-based design studio PriestmanGoode recently presented its concept vehicle for autonomous ride-hailing ‘New Car for London’.

Ben purchased his van with about 260,000 miles on it and has since made a number of mechanical, interior, and exterior changes