بالفيديو.. أصغر "روبوت" طائر بالعالم يشبه الذبابة ويمكنه التجسس - Video. Smaller "robot" in the world is like a bird that can fly and spy

أصغر "روبوت" طائر بالعالم

نحن نعيش فى عصر التكنولوجيا والابتكار، ويعمل العلماء فى جميع أنحاء العالم من أجل التوصل إلى اختراعات جديدة وفعالة، وإعداد أساليب أكثر كفاءة وتطورا فى الإنتاج والتكنولوجيا المتطورة مسّت كل مهنة وأضافت إليها، والروبوتات خير مثال على ذلك حيث حدث لها قفزة عملاقة فى السنوات القليلة الماضية.

قام علماء أمريكيون من جامعة هارفارد باختراع أصغر "روبوت" فى العالم فى حجم الذبابة لا يزن سوى جرامات ويمكنه الطيران، وإذا قام أحد بالاقتراب منه يبتعد مثل الذبابة تماما، وتم استخدام مادة خاصة فى صنعه تعرف باسم المواد "الكهروضغطية" لتحقيق 120 مرة حركة للجناح فى الثانية الواحدة، ويمكن أن يستخدم لعمليات البحث عن ناجين تحت المبانى المنهارة أو فى البيئات الخطرة الأخرى ، كما يمكن أن يستخدم للرصد البيئى، والزراعة والتلقيح والتجسس.

Scientists in the US have created a robot the size of a fly that is able to perform the agile manoeuvres of the ubiquitous insects.

This "robo-fly", built from carbon fibre, weighs a fraction of a gram and has super-fast electronic "muscles" to power its wings.

Its Harvard University developers say tiny robots like theirs may eventually be used in rescue operations.

It could, for example, navigate through tiny spaces in collapsed buildings.

Dr Kevin Ma from Harvard University and his team, led by Dr Robert Wood, say they have made the world's smallest flying robot.

It also has the fly-like agility that allows the insects to evade even the swiftest of human efforts to swat them.

This comes largely from very precise wing movements.

By constantly adjusting the effect of lift and thrust acting on its body at an incredibly high speed, the insect's (and the robot's) wings enable it to hover, or to perform sudden evasive manoeuvres.

And just like a real fly, the robot's thin, flexible wings beat approximately 120 times every second.

The researchers achieved this wing speed with special substance called piezoelectric material, which contracts every time a voltage is applied to it.

By very rapidly switching the voltage on and off, the scientists were able to make this material behave like just like the tiny muscles that makes a fly's wings beat so fast.

Dr Ma even suggested that the robots could behave like many real insects and assist with the pollination of crops, "to function as the now-struggling honeybee populations do in supporting agriculture around the world".

The current model of robo-fly is tethered to a small, off-board power source but Dr Ma says the next step will be to miniaturise the other bits of technology that will be needed to create a "fully wireless flying robot".