Yes, there are powerful free AI apps available in 2025 that let you generate text, images, voice, and code without paying. Discover the top tools you can use right now with no credit card required.
Wood was once our main energy source, but today it's largely abandoned for power generation. Here's why-efficiency, pollution, deforestation, and better alternatives make it impractical for modern energy needs.
STEM classes teach more than science and math-they build problem-solving, teamwork, and critical thinking skills through hands-on projects that connect real-world challenges with science, technology, engineering, and math.
Modern biotechnology uses CRISPR, synthetic biology, and gene editing to transform medicine, agriculture, and the environment. Discover real applications in India today-from drought-resistant crops to affordable gene therapies.
Technology transfer fails not because of bad science, but because of poor design, weak support, and misaligned incentives. Real adoption requires user-centered planning, local partnerships, and sustainable maintenance.
Renewable energy is now cheaper than coal and gas in India. Solar and wind power cost less per unit, save money long-term, and create jobs. Learn why switching makes financial sense in 2025.
Scientific collaboration comes in many forms-from internal lab teams to global projects with hundreds of researchers. Learn the six main types, how they work, and how to choose the right one for your research.
Real-world examples of public health programs that saved lives - from polio vaccines and smoke-free laws to clean water and maternal care. See how simple, scalable efforts prevent disease and protect entire communities.
Data scientists don't just work with numbers-they talk to people every day. From nurses to warehouse managers, their real job is understanding problems and turning them into actionable insights.
Healthcare researchers get paid through grants, institutional salaries, industry jobs, or government roles - not one steady paycheck. Here's how funding works, who earns what, and why the system is so unstable.
An intervention program in public health is a planned effort to prevent disease and improve health outcomes. Examples include polio vaccination drives, diabetes prevention through lifestyle changes, and smoke-free laws. These programs work by targeting behaviors, not just symptoms.
The simplest form of AI is rule-based systems-programs that follow fixed rules like 'if this, then that.' Used since the 1970s, they power chatbots, spam filters, and thermostats today. No learning required, just logic.