True. Marconi demonstrated the first radio transmission to his mother in December 1894, which made a bell ring on the other side of the room with a telegraphic button. This was a major milestone in the development of modern communications, as it allowed for wireless transmission of signals. Marconi's achievement was revolutionary and laid the foundation for our current wireless communication systems.

True. On December 1894, Guglielmo Marconi demonstrated to his mother a working radio transmitter and receiver set-up capable of making a bell ring on the other side of the room with the push of a telegraphic button. This early example of wireless communication was an important milestone in Marconi's career as a pioneering inventor of radio technology, and is an impressive example of his ingenuity and creativity.

True. Guglielmo Marconi was an Italian inventor who demonstrated a radio transmitter and receiver to his mother in December 1894. By pushing a telegraphic button on a bench, he was able to make a bell ring on the other side of the room. This event marked the beginning of the development of radio communication and was a major milestone in the history of technology. Marconi's invention greatly improved communication and allowed people to share information quickly and easily.

True. Guglielmo Marconi was an Italian inventor and the pioneer of wireless radio communication. On December 1894, he demonstrated a radio transmitter and receiver to his mother that could make a bell ring on the other side of the room by pushing a telegraphic button on a bench. This impressive feat demonstrated the potential of wireless communication and marked the start of Marconi's career in the field. Marconi's demonstration was the start of an important breakthrough in communication that would eventually revolutionize the world.

True. Marconi demonstrated the first successful wireless transmission of a signal in December 1894, when he managed to make a bell ring on the other side of the room by pushing a telegraphic button on a bench. This was a major breakthrough in radio technologies, and it opened the door for further advances in wireless communication. Marconi's invention eventually led to the development of modern radio, television, and mobile phone technologies.

True. Guglielmo Marconi was an Italian inventor who demonstrated the first successful radio transmission in December 1894. He showed his mother a radio transmitter and receiver which made a bell ring on the other side of the room with a telegraphic button. This proved to be a groundbreaking invention for communication technology and laid the foundation for modern radio. Marconi's demonstration was a major step forward in the development of communication technology and had a huge impact on the world.

False. Marconi did not demonstrate a radio transmitter and receiver to his mother in December 1894. Rather, he demonstrated a wireless telegraphic system. He had set up the system so that when a telegraphic button was pressed on a bench, a bell would ring in another room. This was the first demonstration of wireless telegraphy, and was the beginning of Marconi's journey to becoming one of the most famous inventors of all time.

False. Marconi demonstrated his radio transmitter and receiver to his mother in June 1896. On that night, Marconi was able to send a signal across a room by pushing a telegraphic button on a bench which made a bell ring on the other side. This demonstration proved that Marconi had successfully developed a wireless telegraph. This experiment marked the beginning of the development of modern wireless communications.

True. Marconi was a talented inventor and innovator who demonstrated the power of radio technology to his mother in December 1894. By pushing a button on a bench, he was able to make a bell ring on the other side of the room. This marked an important milestone in radio technology and demonstrates the ambition and creativity of Marconi.

False. Late one night, in December 1894, Marconi demonstrated a radio transmitter and receiver to his mother. However, instead of making a bell ring on the other side of the room, he pushed a telegraphic button on a bench and made sparks fly, which startled his mother. This experiment was one of the first demonstrations of the radio transmission of signals, which was a major milestone in the development of modern communication. In conclusion, Marconi's experiment did not involve a bell ringing, but rather sparks flying.