Science, Technology and Society - Reports .pptx

STS

1. GRAVITY the force that attracts a body toward the center of the earth, or toward any other physical body having mass It is responsible for phenomena such as the attraction between physical bodies , the motion of planets around stars , and the formation of galaxies .

2. GRAVITY the force that attracts a body toward the center of the earth, or toward any other physical body having mass It is responsible for phenomena such as the attraction between physical bodies , the motion of planets around stars , and the formation of galaxies .

3. GRAVITY the force that attracts a body toward the center of the earth, or toward any other physical body having mass It is responsible for phenomena such as the attraction between physical bodies , the motion of planets around stars , and the formation of galaxies .

4. GRAVITY

5. GRAVITY The discovery of gravity as a fundamental force is attributed to Sir Isaac Newton , an English mathematician, physicist, and astronomer. In the late 17th century Newton's insight into gravity was sparked when he observed an apple falling from a tree .

6. GRAVITY Newton's law of universal gravitation enabled astronomers to explain the motions of celestial bodies , such as planets, moons, and comets, within the solar system . The understanding of gravity has practical applications in numerous technologies, including space exploration, satellite communications, and navigation systems .

7. GRAVITY Gravity is the force that holds celestial bodies , such as planets, moons, stars, and galaxies, together. Without gravity, these objects would disperse into space. Gravity holds the Earth's atmosphere in place . This is essential for maintaining the right conditions for life , as the atmosphere provides oxygen, regulates temperature, and protects against harmful cosmic rays. The gravitational pull of the Moon and the Sun causes ocean tides on Earth . Tides play a significant role in coastal ecosystems, navigation, and the distribution of nutrients in the oceans.

8. MICROSCOPE is an optical instrument used to observe objects that are too small to be seen by the naked eye It works by magnifying the image of an object , allowing scientists and researchers to study its fine details and structures.

9. MICROSCOPE is an optical instrument used to observe objects that are too small to be seen by the naked eye It works by magnifying the image of an object , allowing scientists and researchers to study its fine details and structures.

10. MICROSCOPE Hans Janssen and Zacharias Janssen : In the late 16th century (around 1590), these Dutch spectacle-makers are often credited with creating one of the earliest compound microscopes . Their device consisted of a tube with lenses at both ends, allowing for magnification of small objects. Zacharias Janssen

11. MICROSCOPE Antonie van Leeuwenhoek : A Dutch scientist, Leeuwenhoek is renowned for his groundbreaking work with microscopes in the 17th century. Although he did not invent the microscope, he significantly improved its design and was the first to use it for detailed observations of microorganisms, sperm cells, and other tiny structures.

12. MICROSCOPE Robert Hooke : An English scientist, Hooke is best known for his book " Micrographia " published in 1665, in which he described his observations using a compound microscope. Hooke coined the term " cell " to describe the microscopic structures he observed in cork, laying the foundation for the field of cell biology .

13. MICROSCOPE

14. TELESCOPE an optical instrument designed to make distant objects appear closer and clearer by gathering and magnifying light. They are used in astronomy, allowing astronomers to study celestial objects such as stars, planets, galaxies, and nebulae.

15. TELESCOPE The credit for inventing the telescope is often given to Hans Lippershey , a Dutch eyeglass maker, around the early 17th century. Lippershey is believed to have applied for a patent for his invention in 1608 .

16. TELESCOPE Galileo Galilei built his own telescope and used it to make groundbreaking astronomical observations. In 1609 , he discovered the four largest moons of Jupiter (now known as the Galilean moons) and observed the phases of Venus, which provided evidence for the heliocentric model of the solar system proposed by Copernicus.

17. TELESCOPE The telescope revolutionized astronomy by enabling scientists to observe celestial objects in far greater detail and clarity than was possible with the naked eye alone. Galileo Galilei's observations through the telescope provided evidence supporting the heliocentric model proposed by Copernicus. They have enabled scientists to map the surfaces of planets, study their atmospheres, and observe dynamic phenomena such as volcanic eruptions and weather patterns .

18. MICROSCOPE Helped scientists to observe and study the intricate details of living organisms at the cellular and subcellular levels. It allowed for the discovery of cells, bacteria, fungi, protozoa, and other microscopic life forms Laid the foundation for the modern field of microbiology and contributing to our understanding of life processes. Advancement of Medicine

19. RADIO is a way to send electromagnetic signals over a long distance, to deliver information from one place to another. A machine that sends radio waves is called a transmitter , while a machine that "picks up" the signals is called a receiver or antenna .

20. Guglielmo Marconi : Italian inventor Guglielmo Marconi is often credited with the practical development and commercialization of wireless telegraphy, which laid the foundation for modern radio communication. RADIO

21. Communication : Radio technology revolutionized long-distance communication by enabling wireless transmission of voice, data, and signals. Broadcasting and Education : Radio broadcasting has been a powerful medium for disseminating information, education, and entertainment to mass audiences. RADIO

22. INTERNET a global network of billions of computers and other electronic devices. With the Internet, it's possible to access almost any information, communicate with anyone else in the world, and do much more.

23. INTERNET Paul Baran : developed the concept of packet switching, a method for dividing data into packets that could be transmitted independently across a network .

24. INTERNET Vinton Cerf and Robert Kahn : referred to as the “ Fathers of the Internet ," played pivotal roles in the development of the TCP/IP protocol suite , which forms the basis of modern Internet communication. Their work enabled different computer networks to interconnect and communicate , leading to the creation of the Internet as a global network of networks.

25. Tim Berners-Lee : a British computer scientist, invented the World Wide Web (WWW) in the late 1980s. He developed the first web browser, web server software, and protocols (such as HTTP) that allowed for the sharing and retrieval of information over the Internet, revolutionizing the way people access and interact with digital content. INTERNET

26. INTERNET Global Communication and Collaboration : The Internet enables real-time communication and collaboration among scientists, researchers, and experts worldwide. Access to Information and Research : The Internet provides unparalleled access to vast repositories of information, research articles, and academic resources.

27. CELLPHONE a wireless telephone using a system of low-powered radio transmitters, with each transmitter covering a distinct geographical area (cell), and computer equipment to switch a call from one area to another, thus enabling broad-scale portable phone service.

28. CELLPHONE Martin Cooper : Often credited as the inventor of the modern handheld mobile phone, Martin Cooper, an engineer at Motorola, made the first public call from a handheld mobile phone on April 3, 1973. Often recognized as the “ Father of the Cellphone "