The Portuguese alphabet contains twenty-four letters, and itâs a basic lesson of Portuguese vocabulary. Portuguese students begin learning Portuguese language with the alphabet, this is a essential step to learn how to write each letter an how to pronounce each one. If one learns this vocabulary topic very well, one will not have problems to write all Portuguese words.
Laser Entfernungsmesser image by Otmar Smit from Fotolia.com. A laser distance meter works by use measuring the time it takes a pulse of laser light to be reflected off a target and returned to the sender.perating Principle. A laser distance meter emits a pulse of laser at a target. The pulse then reflects off the target and back to the sending device (in this case, a laser distance meter).
A long range laser rangefinder is capable of measuring distance up to 20 km; mounted on a tripod with an angular mount. The resulting system also provides azimuth and elevation measurements. A laser rangefinder is a rangefinder which uses a laser beam to determine the distance to an object. The most common form of laser rangefinder operates on the time of flight principle by sending a laser pulse in a narrow beam towards the object and measuring the time taken by the pulse to be reflected off the target and returned to the sender.