BBC10 个月
Quantifiers, intensifiers and adverbs of time and place
Quantifiers and intensifiers are adverbs that are used to talk about quantities, amounts or degree. Quantifiers and intensifiers are words such as enough, a lot, a little or very. Adverbs of time ...
Interesting Engineering on MSN4 个月
Thinner than hair: New OLED promises ultra-lightweight night vision glasses
Currently, systems that are in use depend on image intensifiers for the night vision. These intensifiers convert incoming ...