light

technology

equipment

shiny

physics

vanishing

laser

experiment

laboratory

accuracy

research

lens

science

university

phenomenon

studying

engineering

design

power

energy

danger

optic

photon

spectrum

supply

reflection

glass

education

modern

green

professional

explore

assembly

twilight

magnifying

loupe

closeup

deflection

dark

line

bright

beam

nopeople

smoke

blue

vapour

tubes

cloud

support