On This Day Word Search — Quick

Play a free online On This Day word search puzzle. Difficulty: Quick. Find all 14 hidden words on the 15×15 grid below.

Words to find

Plus 4 hidden bonus words.

On This Day word list, defined

GRAVITY /ˈɡrævɪti/ · noun
A natural force causing objects with mass to attract each other. It is a fundamental force of nature that gives weight to objects and keeps them on the ground. Related: weight, attraction, pull, influence.
WAVE /wɛv/ · noun, verb
A movement or disturbance that transfers energy through a medium, such as water or air. To move in a wavelike motion, typically in a series of oscillations. Related: billow, swell, undulation, oscillation.
INTERFEROMETER /ˌɪntərˈfɪərmɪtər/ · noun
An instrument used to measure the interference of two or more waves, typically light waves, to determine the distance or properties of an object or a phenomenon. Related: interferograph, interferometer, wavefront analyzer, optical interferometer.
DETECTION /dɪˈtɛkʃən/ · noun
The action or process of discovering or identifying the presence, existence, or fact of something that is hidden, subtle, or not immediately obvious. Related: discovery, identification, recognition, discernment.
EINSTEIN /ˈaɪnstaɪn/ · noun
(informal) An exceptionally intelligent person; a genius. Used especially in ironic or negative constructions such as 'I'm no Einstein.' Related: genius, mastermind, prodigy, brain.
SPACETIME /ˈspeɪsaɪm/ · noun
Spacetime is a concept in physics that combines space and time as a single, unified entity. It is a four-dimensional fabric that is curved by the presence of mass and energy. Related: space, time, universe.

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