It's much easier and faster to deliver any information or message
to 50,000 people by radio than by personal visits or mail.
i do not know who invented town criers, but i do know that they were supposed to tell people news and warn people
The advantages of using television for education are the TVs keep students' attention better than books, and it is more fun than books. The disadvantages are that the students cannot interact with a TV, they do not know where the information came from, and they cannot always re-watch shows for missed information.
It provides communication with air traffic control centres along the plane's route. Without it - there would be no way to warn the pilot if there was another plane on a collision course, or if there was bad weather ahead, or if the plane was too low to fly over a mountain etc...
The song has a spiritual meaning, relating to George's faith in the philosophy of the Radha Krishna Temple. Imagery is used to warn against being corrupted by material things and bad influences, by asserting that spirituality must override these concerns.
No. Jingle bells as per those on sleighs were originally designed to warn people that a sleigh and horse were near. As the vehicle moved, the sound of the bells alerted those in it's path to be aware. In Russia, the bells were said to scare away wolves
They interrupt all television and radio entertainment systems to warn the people.
To warn people when emrgencies were happening and too entertain with music
You can warn people about tornadoes by posting a weather warning on tv or radio. I agree with that, but, not all people have radio, or television. Just to be safe, make sure your neighbors are aware of warnings, and help them to safety.
To warn people of hazards use:trainingsafety meetingswarning signs
They were used to warn of incoming bombing raids. The sirens could be heard over a wide area - and were more effective than (for example) making a radio broadcast.
If a possible tornado is seen by spotters or detected by radar a tornado warning is issued. The public is then informed of the warning via special TV and radio announcements, as well as through the internet. Some towns sound sirens that warn of a coming tornado.
Smoke detectors are devices that detect smoke. They are used as warning devices in houses to warn people of fire.
Doom paintings were used to warn people about living a sinful life by showing them heaven and hell.
Checkers is go, green is jump, red is fly Flags used by marshals on the circuit to quickly warn drivers of problems ahead of them. \ Flags are still used as a backup in case radio links fail
Make a book
Warning = ehthar or Khatar ( in Arabic ). and it written in Arabic this way : إحذر , خطر
They were used to warn people of impending attacks of bombers. Today they are used for tonados and other disaters.