Introduction
Welcome to the final lesson on the "Science" part of our current module. In our previous session, we covered key biological concepts, focusing on human body systems, vitamins, and diseases. Today, we shift our attention to another crucial area for the SSC CGL General Awareness section: technology and space exploration.
This lesson will help you identify important scientific inventions, discoveries, and ISRO space missions. These topics are a reliable source of direct, fact-based questions in your exam. We will first explore a list of landmark inventions and discoveries that have shaped the modern world. Then, we will take a detailed look at the achievements of the Indian Space Research Organisation (ISRO), a subject of national pride and a frequent topic in competitive exams.
Part 1: Landmark Scientific Inventions and Discoveries
For your exam, questions on this topic usually require you to match an invention or discovery with its inventor. While the list can seem long, focusing on the most significant ones is an effective strategy.
Let's start with a video that quickly covers some of the most frequently asked inventions and their inventors. The instructor's approach is tailored for exam revision.
Important Inventions and Inventors in physics for Exams | Quick Revision with Radhika mam.
This video from 'RBE Revolution By Education' provides a rapid-fire revision of important inventions and the scientists credited with them.
Watch the following segments, and as you do, try to create a mental link between the invention and the inventor's name. Fundamental Inventions: Watch the first part from the beginning, which covers foundational inventions like the Airplane (Wright Brothers), Barometer (Torricelli), Battery (Volta), Diesel Engine (Rudolf Diesel), Dynamite (Alfred Nobel), and the Electric Lamp (Edison). Modern and Medical Inventions: Continue watching from this section. Pay close attention to the Mobile Phone (Martin Cooper), the first antibiotic Penicillin (Alexander Fleming), Printing Press (Gutenberg), Radium (Marie Curie), Radio (Marconi), Steam Engine (James Watt), Telephone (Graham Bell), and X-Rays (Roentgen).
To reinforce this information visually, take a look at the chart below. It presents some of the inventions we've just discussed, along with others that are useful to know.
Now that you have a good overview, it's time to consolidate your knowledge with a comprehensive list. The following resource is excellent for systematic learning and revision. It also includes sample questions that will help you understand how this topic is tested in exams.
This article from BYJU'S provides a detailed table of inventions, inventors, and their years, which is ideal for memorization.
First, scan the main table of inventions. Don't try to memorize everything at once. Instead, focus on the items we covered in the video and any others that seem familiar or particularly important (e.g., Blood Group, Periodic Table, Polio Vaccine). Next, review the sample questions at the end of the article. Notice the format: you might be asked to identify the inventor, the invention, or the year of discovery. This will help you focus your preparation.
Part 2: ISRO's Major Space Missions
India's space program, led by ISRO, is a significant topic in the General Awareness section. Questions often focus on the names, objectives, and key achievements of major missions.
Let's begin with this excellent infographic that provides a timeline of ISRO's journey, highlighting its most famous missions.
Now, let's delve into the details of these missions. The following resource offers a very clear and structured overview, categorizing missions by their objective (e.g., lunar, planetary, etc.), which is perfect for organized learning.
ISRO Missions List: Chandrayaan, Mangalyaan, Aditya-L1, and Major ISRO Space Missions Explained
This article from Physics Wallah explains ISRO's major missions in a clear, categorized format.
Please read the following sections to understand the goals and outcomes of India's key space endeavors. Lunar Missions: Start by reading the section on lunar missions. Pay special attention to the achievements of Chandrayaan-1 (discovery of water) and the historic success of Chandrayaan-3 (soft landing near the lunar south pole). Planetary & Solar Missions: Next, read about the planetary missions. Focus on the Mars Orbiter Mission (Mangalyaan), which made India the first nation to reach Mars on its first attempt, and Aditya-L1, India's first mission to study the Sun. Upcoming Missions: Finally, review the section on upcoming missions. The Gaganyaan Program (India's first human spaceflight mission) and NISAR (a joint mission with NASA) are particularly important.
The Gaganyaan and Aditya-L1 missions are very recent and highly relevant for upcoming exams. Let's watch a couple of short clips to reinforce the key facts about them.
Space Current Affairs 2026 | ISRO Mission in India 2026 | Science Current Affairs 2026
This video from 'Ravi Aditi Classes' provides current affairs updates on space missions, including details on Aditya-L1 and Gaganyaan.
Aditya-L1 Mission: Watch this clip from this point to review the rocket used (PSLV-C57), the mission's objective (studying the Sun), and its destination (Lagrange point L1). Gaganyaan Mission: Now, watch the segment on Gaganyaan from this timestamp. Note its objective (sending humans to a 400 km orbit) and the planned launch timeline.
Conclusion
In this lesson, we have covered two important static GK topics: scientific inventions and ISRO's space missions. Mastering these facts will be very beneficial for the General Awareness section of your SSC CGL exam.
Here are the key takeaways from today's session:
- Inventions and Discoveries: Focus on memorizing the inventor for major breakthroughs like the telephone (Graham Bell), penicillin (Fleming), X-rays (Roentgen), the electric bulb (Edison), and the radio (Marconi).
- ISRO Missions: You should be familiar with the main objective of each flagship mission. Key facts to remember are Chandrayaan-3's successful lunar south pole landing, Mangalyaan's success on its first attempt to reach Mars, Aditya-L1's role as a solar observatory, and Gaganyaan's goal of sending Indian astronauts into space.
This lesson concludes our exploration of the science-related topics within this module. In our next lesson, we will address the final learning outcome: describing basic environmental concepts like ecology, pollution, and conservation.