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Two Balls Rolling On An Incline

Mechanics Corner     A Journal of Applied Mechanics and Mathematics by DrD, # 37     29 April 2017 Two Balls Rolling On An Incline A Problem Where I Learned Something New Introduction     In previous articles, I have mentioned another web site called Physics Forums (PF) where people post problems for which they need help. In this note, I want to present to you one such problem and it solution, along with a new insight that came from another commenter at PF, one of the advi

DrD

DrD

 

Difference between refrigeration and air conditioning

what is the difference between refrigeration and air conditioning? A major difference between refrigeration and air conditioning is the point of supply for the gases. Refrigeration systems have gas installed in a series of tubes. In old refrigerators, this gas was chloro-flouro-carbon, or CFC, but this has harmful effects on people, so refrigerators not contain HFC-134a. HFC-134a is the sole gas used as a coolant in refrigeration systems. Air conditioning systems use built-in chemicals, b

AFZALKHAN

AFZALKHAN

 

La fabricación de piezas por maquinado. Introducción.

Tema I   La fabricación de piezas por maquinado   1.1 Introducción Todo ingeniero debe tener una cultura general integral y, dentro de esta, como es lógico, una cultura de la profesión. Parte de la cultura del ingeniero mecánico consiste en conocer la historia de la ingeniería, y en el caso particular de este blog es importante comenzar por conocer muy brevemente la historia de las máquinas herramienta. Para ello se presentará  más adelante el anexo I, el cual trata sob

Sergio Padron

Sergio Padron

 

Check what you know

1. In a steam turbine, the ............ is allowed to rotate? 2. Which valve controls the flow of steam into the turbine?         3. The blades in a ............... turbine are designed so that the pressure below the blade is always higher than the pressure above which causes them to move (or spin) as high velocity fluid flows through them.        4. Where in the steam path is the energy transferred from the steam to the turbine?          5. There is excessive corrosion

EGUAOJE Fredrick

EGUAOJE Fredrick

 

I Thought You Knew

Recently I was interviewed by a Mechanical Engineering student on the importance of communications. I’m approaching 40 years in engineering practice so the examples began to flow and the student’s 15 minute time estimate for the meeting quickly turned into two hours. The meeting itself was a lesson in communications. My awareness of the root cause, that I will describe below, I believe made the information more valuable. The student and I covered many issues on the topic of communications,

JAG Engineering LLC

JAG Engineering LLC

 

Base Acceleration Problem -- #36

Mechanics Corner A Journal of Applied Mechanics and Mathematics by DrD, #36   Base Acceleration Problem Introduction In a recent post (#35) I mentioned that I often participate in another forum called Physics Forums (PF). The problem that I want to discuss here is an elaboration on a problem that recently appeared at PF. I'm going to add a little bit of complexity to the problem (the problme as stated at PF was extremely simple) in order to make a particular point.

DrD

DrD

 

Good News -- Bad News -- Rolling Disk in a Rolling Ring

Mechanics Corner     A Journal of Applied Mechanics and Mathematics by DrD, # 35       Machinery Dynamics Research, 2017 Good News --- Bad News Rolling Disk in a Rolling Ring      Introduction     Well, it looks like Mechanics Corner is back, at least in terms of an occasional post. It will probably be less frequent than previously, but there are just too many interesting things to talk about to remain entirely silent! The title for this post may leave you wondering wh

DrD

DrD

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