What these tiny robots can do will amaze you! There is a robotic revolution underway and unfortunately, we are somewhat distracted to witness it. From microbot swarms that could shapeshift, walk, fly, swim, climb, crawl and organize themselves to do various tasks, deliver drugs in our bodies, identify cancers, destroy tumours, these are the kind of stuff that dreams are made of. And all these have been a possibility thanks to the latest advances in nanotechnology, computing, electronics, and mechanics. Here are those most advanced, creative, and enigmatic microbots that you never knew existed and would make life so much easier for us.

A team of researchers from the University of Southern California have created a miniscule autonomous robotic beetle, RoBeetle, that can travel for more than two hours without a battery. The 88-milligram, insect-inspired robot runs on liquid methanol, which powers its artificial muscles, and it can carry payloads 2.6 times its own body weight. As you may know, batteries have low energy density, meaning in order to store lots of energy, they need to be pretty big. That's a problem for microrobots, and it's one reason that tiny bots, like Harvard's penny-sized HAMR-JR, are often tethered to power sources. The fact that RoBeetle doesn't need a battery means it can be ultra-tiny and crawl around untethered.

One of the world's smallest microrobots is able to carry 2.6 times its own body weight thanks to a muscular system powered by alcohol. Conventionally, the "muscles" of small robots have been tethered to an external power source. Alternatively, they have been powered by batteries, the weight and size of which have limited efficiency and how small the robots can be. Top-of-the-range batteries have an energy density of around 1.8 megajoules per kilogram, a fraction of what you get from animal fat, which is about 38 MJ/kg. The methanol-powered muscles used by RoBeetle, an 88-milligram-long microrobot, can use catalytic combustion to reach energy levels up to 20 MJ/kg.

A tiny robotic beetle that can crawl, climb slopes, carry different loads and has'muscles' powered by a liquid methanol fuel has been developed by researchers. Roboticists from California developed the bug-sized'RoBeetle' -- which weighs in at less than 1/100th of an ounce -- to explore new means of propelling tiny machines. It is hoped that the design will inspire a new breed of small-scale robots that can perform simple tasks without the need for external controls or bulky components. A tiny robotic beetle that can crawl, climb slopes, carry different loads and has'muscles' powered by a liquid methanol fuel has been developed by researchers. When building robots of the scale of the RoBeetle, batteries become relatively inefficient at storing energy, especially when compared to the amount that can be stored in animal fat -- the biological equivalent of a fuel tank.