detectors

Gamma-ray

far-seeing

aberration

sensor

perspicillum

Lippershey

radiation

electromagnetic

element

aids

infrared

remote

lenses

X-ray

objects

spectacle makers

spectrum

visible light

radio

antenna

1608

Netherlands

Janssen

CCD

reflecting

Metius

Neutrino

Galileo

film

glass

Cosmic-ray

spherical

spacecraft

mirrors

Alkmaar

Newton

collecting

applications

terrestrial

objective

parabolic

refracting

light-gathering

observation

telescope

recording

88

chromatic

astronomy

detecting

satellites

/pos

Middelburg

achromatic