• I'm looking outside now and that's electromagnetic radiation - visible light.

    BBC: NEWS | UK | Magazine | Wi-fi worry

  • When it is ground into nanoparticles it can still block harmful ultraviolet radiation, but it allows visible light to pass straight though, which means modern sunscreens can appear completely transparent, while offering the same protection as the old white stuff.

    ECONOMIST: The risk in nanotechnology

  • Even something too small to emit visible light will probably give off radio waves and infra-red radiation (Jupiter does).

    ECONOMIST: X marks the spot

  • The telescope gathers and focuses electromagnetic radiation (usually, but not always, visible light) to make far-off objects seem brighter and closer.

    FORBES

$firstVoiceSent
- 来自原声例句
小调查
请问您想要如何调整此模块?

感谢您的反馈,我们会尽快进行适当修改!
进来说说原因吧 确定
小调查
请问您想要如何调整此模块?

感谢您的反馈,我们会尽快进行适当修改!
进来说说原因吧 确定