A Tiny Ruler for Light Leaves the Lab
In the app: the whole story at your level, listening, the quiz and the word cards.
The same story at six levels
How the first sentence reads at every level, from A1 to C2.
- A1
Scientists at NIST and JQI showed a microcomb.
- A2
Scientists at NIST and JQI showed a new microcomb.
- B1
Scientists have shown a new microchip frequency comb, which is also called a microcomb.
- B2
Scientists at the National Institute of Standards and Technology (NIST) and the Joint Quantum Institute (JQI) have demonstrated a new microchip frequency comb, also called a microcomb.
- C1
Measuring light frequencies very accurately requires a tool whose marks are made of light itself.
- C2
Measuring light frequencies with high accuracy requires a ruler whose ticks are made of light itself.
Key words
Words from the B1 text, with their meaning.
- separate
- to divide something into different parts or groups
- measurement
- the act of finding the exact size, weight, or amount of something
- steady
- staying the same and not changing or moving suddenly
- trap
- to catch something and keep it in one place so it cannot escape
- device
- a piece of equipment or small machine made for a special purpose
- submarine
- a special kind of ship that can travel deep underwater
Rewritten with AI from facts reported by NIST. Read the original for the full report.