The Space Tools That Fixed The Hubble
Nothing is easy in space.Imagine trying to use a caulking gun while wearing hockey gloves and bobbing in zero gravity.To repair or install modules in extreme conditions (temperatures ranging from 150 degrees below zero to 150 degrees Fahrenheit) NASA astronauts need special tools.
Short on time, the engineers turned to commercially available tools that could be modified for space.
“Whenever we can start with something like that, it makes our job easier,” said Russell L. Werneth, Goddard EVA manager for the Hubble Space Telescope and Shuttle Return to Flight.
REMOTORING
The properties of motors should be thoroughly understood to avoid some chronic misconceptions. Before deciding to remotor, it is wise to know what you have and what improvements are available for replacement. A thorough ANALYSIS OF MOTOR PERFORMANCE is required to avoid disappointment and wasted time, effort and money. Each motor has its pros and cons, dependent on application. Is it worth performing major surgery on a loco, destroying the original mount, only to find nothing was gained or that things are worse ?
PHYSICS | MECHANICS FORCE | ENERGY or WORK | Torque
A short discussion of some basic physics may help explain other discussions or just confuse them more. With a degree in years of experience as an Automation Engineer, sometimes I overlook the fact that not everyone has a background to understand all the math and jargon. An attempt to clear things a bit is presented.
DYNAMOMETER
There is much hype on the quality of new motors used in expensive locomotives, but very little data on their true performance or ratings.
Used to measure the output of a prime mover (motor or engine), an electric motor dynamometer consists of three parts: a brake to measure torque applied as a resisting force to the shaft, a tachometer to measure RPM and an ammeter to measure current.
Protect your eyes with LG W53 series
Given that computer monitor is the main cause of deteriorating vision, LG offer users the new intelligent monitors from W53 series , which protect the eyes.
Intelligent monitor LG W53 offers enviable performance with regard to automatic settings according to the image on the screen. Monitor that have a background of white calls most eyes, therefore LG W53 diminishing brightness automatically during the drafting of documents.
Free antivirus from Microsoft
Microsoft will launch a free antivirus for PCs – code named Morro – which will be available on the company website. The product, which is found in beta and will compete with products
sold by Symantec and McAfee.
A Microsoft representative announced Wednesday that the software manufacturer is preparing to launch a antivirus, in beta, which can be downloaded free from the company website. Microsoft has stated that the product is still in testing stage and refused to give an exact date for release, stating only that it will take place “soon”.
Samsung Electronics first mobile phone that operates on solar energy
Samsung Electronics launched its first mobile phone that operates on solar energy, the “Solar Crest” (E1107). It gives its users the opportunity to charge the battery wherever there is a source of solar energy, when sources of electricity are not available.
The Russian army have psychotronic weapons that can turn people to zombie
Boris Ratnikov, a russian General in reserve, told recently to the journalists of the Pravda publication, that Russia and other countries have psychotronic weapon that can turn enemy soldiers troops in a bunch of zombie, that are easily to control.
According to General Ratnikov, Russia has been working on the psychotronic weapons since [...]
The danger awaiting behind a screensaver
When we’re talking about your computer security, the most dangerous online activities are searching for screensavers, the lyrics of songs and different stuff for free.
The report prepared by McAfee Inc., a firm specialize in Internet security, looks like hackers know what users search most and using sophisticated search programs , they can [...]
Astronomers have discovered a solar system identical to ours
Astronomers have discovered a planetary system orbiting a distant star which looks much like our own.
They found two planets that were close matches for Jupiter and Saturn orbiting a star about half the size of our Sun.