Answer:
Transportation: The Wright Brothers
The Wright Brothers, Orville and Wilbur, invented and built the world's first successful airplane in 1903. Their innovation in transportation not only revolutionized the way people travel but also paved the way for modern aviation, which has had a significant impact on the economy and global connections. Their invention has made air travel faster, cheaper, and safer, making it an essential part of modern transportation.
Communication: Alexander Graham Bell
Alexander Graham Bell is credited with inventing the first practical telephone in 1876. His invention was a groundbreaking achievement that revolutionized communication by allowing people to speak with each other in real-time, even if they were miles apart. The telephone has since evolved into the modern-day smartphone, which has made communication even more accessible and instantaneous.
Medicine and Biology: Jonas Salk
Jonas Salk developed the first polio vaccine in 1955. His invention is one of the greatest medical achievements of the 20th century, as it effectively eradicated a debilitating and deadly disease. Polio was once a major public health threat, but thanks to Salk's vaccine, it has been eliminated in most parts of the world. Salk's work has saved countless lives and is an important milestone in the history of medicine.
Presentation:
Slide 1: Title slide with the topic and names of the three inventors
Slide 2: Picture of the Wright Brothers with a brief explanation of their invention and its impact on transportation
Slide 3: Picture of Alexander Graham Bell with a brief explanation of his invention and its impact on communication
Slide 4: Picture of Jonas Salk with a brief explanation of his invention and its impact on medicine and biology
Slide 5: Conclusion slide summarizing the importance of these inventions and people in modern science.