把一篇英文新闻翻译成中文，将其中的专业术语标注并提供翻译。


Scientists at MIT have discovered a new way of powering light bulbs -- one that has the potential to save $250bn in electricity costs globally. Their experiments involved burning a filament hotter than the surface of the sun, and employing nanotechnology to capture the rays before they were lost, and convert them into usable energy, thereby saving as much as 80% of the energy that would normally be lost.
麻省理工学院的科学家们发现了一种新的给灯泡供电的方式——这种方式有潜力在全球节省2500亿美元的电力成本。他们的实验涉及到将灯丝烧得比太阳表面更热，并利用纳米技术捕获光线，将其转化为可用的能源，从而节省了通常会损失的能源的多达80％。

专业术语：
- Filament 灯丝
- Nanotechnology 纳米技术
- Usable energy 可用能源