8 TED Talks selected by Shah Rukh Khan

What does a woman never leave home without? A safety pin, a pointed nail file, red chili powder -- some small weapon to fight off unwanted touches and grabs in public. When artist Jasmeen Patheja asked women to share this intimate detail of their lives, it made her point: everyone deserves safety. Her project, Blank Noise, helps to reclaim public safety for everyone through public projects that build trust and independence for everyone. Watch to the end for a thoughtful dialogue with host Shah Rukh Khan.

Professor Manu Prakash, a physicist and inventor, is creating low-cost scientific instruments that kids can use to do real science -- including a microscope folded out of paper that costs about 100 rupees to make, and a paper centrifuge that costs even less and works like instruments that cost thousands. "Science is not meant only for an exam or the lab," he says. "Science is meant to be in your homes, in your kitchens, and in your heart. If we all make science a part of our lives, we can probably change a lot." (In Hindi with English subtitles)

Online bullying has real-world consequences, and young software engineer Trisha Prabhu saw a way to help. She invented a tool called ReThink that does one simple, elegant thing: it asks people, before they send a hurtful message, if they really want to say that. And most people, it turns out, say: well, actually, no. Hear the story of this clever invention.

We're raising our girls to be perfect, and we're raising our boys to be brave, says Reshma Saujani, the founder of Girls Who Code. Saujani has taken up the charge to socialize young girls to take risks and learn to program -- two skills they need to move society forward. To truly innovate, we cannot leave behind half of our population, she says. "I need each of you to tell every young woman you know to be comfortable with imperfection."

When bankers refused to serve her neighbors in rural India, Chetna Gala Sinha did the next best thing: she opened a bank of her own, the first ever for and by women in the country. In this inspiring talk, she shares stories of the women who encouraged her and continue to push her to come up with solutions for those denied traditional financial backing.