The Man who made Rocket Science Easy | Vasudevan Gnana Gandhi | TEDxKIITUniversity
The speaker, detailing his journey from humble beginnings to leading advanced rocketry programs, argues that adaptability and a willingness to learn continuously—even from modern techniques like 3D printing—are more crucial for success than sheer technological achievements. He uses the progression from solid to cryogenic rockets and the subsequent involvement with Skyroot to illustrate that embracing new methods ensures relevance and progress. He concludes by emphasizing that failure is merely an opportunity to start anew, encapsulated by the metaphor of an egg breaking to begin life. ## Speakers & Context - Unnamed speaker, sharing his career journey in rocketry. - Audience context suggests an event showcasing advanced launch vehicle technology. - Speaker notes the audience might be focused on the patriotic symbolism or the sheer cost of the technology. ## Theses & Positions - The core lesson is the importance of *adaptability* in a career and in technology; the willingness to learn is paramount. - Continued learning is not bound by age. - Failure itself is a necessary part of the process, as evidenced by the initial setbacks in solid propellant loading and the subsequent revival. - Attitude is critical: *"if a egg breaks off its own the life begins."* - The speaker emphasizes that expertise must be shared with younger generations. ## Mechanisms & Processes - **Rocketry Development Progression:** Solid propellant $\rightarrow$ Solid propellant (RS 7500) $\rightarrow$ Cryogenic upper stage $\rightarrow$ LNG upper stage. - **Solid Propellant Loading:** Involved loading propellant inside the rocket motor, a described dangerous work. - **Cryogenic Engine Development:** Initial work began with gaseous hydrogen and gaseous oxygen before accessing necessary cryogenic liquid fuels. - **3D Printing's Impact:** Used to rapidly develop and refine components (e.g., injector) for engines, building what traditionally took six months in about ten days. - **Hydrogen Fuel Solution:** Proposes harvesting hydrogen from fertilizer plants or refineries as a fuel source for over 40,000 buses daily. ## Timeline & Sequence - **Early Life:** Helped mother in the field; worked in a small grocery shop; walked nearly **10 kilometers** to high school. - **Education:** Obtained Mechanical Engineering degree in **1968**. - **Early Career:** Started working under Dr. Yay Mutton, described as *"the father of the propulsion in India."* - **Solid Propellant Work:** Worked on missiles evacuated from near the seashore; involved mixing rubber latex with ammonium perchlorate to make small rockets (around **200 grams**). - **Major Incident:** A big explosion occurred in an oven while attempting to process solid propellant, leading to committee questioning. - **BLSC Project (1985 timeframe):** Involved attaching a small rocket to the belly of an aircraft for takeoff without a runway. - **Cryogenic Entry:** First exposure to the word "cryogenic" when asked to work on it; submitted a project report for a cryogenic upper stage. - **Skyroot Involvement:** Joined the private company Skyroot about four years ago (relative to the talk). - **Modern Development:** Utilizing Lng and small test facilities to develop rockets for placing **200 kg** satellites into Low Earth Orbit (LEO). ## Named Entities - **Indian flag** — Symbol seen on the launch vehicle. - **Dr. Yay Mutton** — Identified as *"the father of the propulsion in India."* - **Sri Lanka/Kerala** — Region mentioned for initial work near the seashore. - **Skyroot** — Private company that approached the speaker. ## Numbers & Data - Degree received: **1968**. - Distance walked to high school: **10 kilometers**. - Propellant weight approximation: **200 grams**. - Satellite payload capacity: **200 kg**. - Number of buses convertible from proposed hydrogen source: **more than 40,000**. - Initial project funding amount: **300 crore**. - Subsequent funding for facility/plant: **100 crore** and **50 crore**. ## Examples & Cases - **Early Life Ingenuity:** Developing a small rocket using rubber latex mixed with ammonium perchlorate. - **The Explosion:** A big explosion in an oven ripped it open, leading to technical review. - **BLSC Test:** Attaching a rocket to an aircraft for take-off without a dedicated runway. - **Cryogenic Failure:** The first fired engine attempt *melted* instead of exploding, leading to necessary process refinement. - **3D Printing Example:** Building an entire engine injector component out of titanium using 3D printing, which was previously a massive, complex process. ## Tools, Tech & Products - **GSLV Mark III:** Launch vehicle discussed, consisting of solid, liquid, and cryogenic stages. - **R-7500:** Solid propellant rocket mentioned. - **Aircraft (for BLSC):** Used for the take-off test without a runway. - **Test Facility:** Used for firing engines; visible evidence of past work being "vanished." - **3D Printing:** Technology used to build components like engines and injectors. ## References Cited - No specific academic papers or books were cited; the speaker references his own accumulated experience and the work of others (e.g., Dr. Yay Mutton). ## Trade-offs & Alternatives - **Fuel Choice:** Moving from solid/liquid propellants to utilizing **LNG** for LEO missions. - **Fabrication Method:** Traditional methods (like casting/welding in Mumbai) vs. modern **3D printing**, which offers superior detail and speed (e.g., building an engine in 10 days vs. 6 months). - **Energy Source for Transport:** The alternative to fossil fuels using harvested hydrogen from fertilizer or refineries. ## Methodology - Blending practical field experience (shop help, walking) with advanced engineering application (propulsion science). - Iterative engineering refinement: Identifying failures (e.g., solid propellant exploding vs. melting) and adjusting process parameters (e.g., allowing thermal expansion vs. controlled cooling). - Integration of modern additive manufacturing (3D printing) into complex mechanical systems. ## Conclusions & Recommendations - The primary message is that *learning* is the ultimate resource, not the hardware. - Emphasis on *sharing knowledge* with younger engineers. - The necessity of *adaptability* to incorporate advancements like 3D printing. - A final directive: Work hard, remain persistent, and always remember that new beginnings come from breaks. ## Implications & Consequences - The transition to cryogenic/LNG fuels allows India to service the burgeoning market for small satellites in LEO. - The adoption of 3D printing shrinks the timeline for developing critical aerospace hardware components from months to days. - The ability to harness industrial byproducts (like fertilizer hydrogen) positions the sector for a sustainable energy future for transport. ## Verbatim Moments - *"the fear or failure obviously achievements"* - *"I see the horizon you know the sky in the night the stars are attracting something"* - *"with minimum resource"* - *"I applied and applied and luckily i got some sstc"* - *"I said 4."* - *"we removed almost 99 percent of the propellant"* - *"if you do work you will do mistake if you keep quiet"* - *"the first success there are the aircraft was took off without the runway"* - *"the stainless yes cracked like a mirror"* - *"hydrogen is the future"* - *"Adoptability"* - *"if a egg breaks off its own the life begins"*