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It has practical importanceinfluencesradio wave propagation between space and earth
the Sundoes influenceradio waves coming to us from space
Space Karl Janskydiscoversradio waves coming from space
phenomenaresultingfrom the interaction of electromagnetic waves with the environment
to ensuredo ... causeradio interference with the surrounding environment
he usedto discoverradio waves coming from space
Karl Janskydiscoversradio waves coming from space
Karl Jansky of the Bell Telephone Laboratoriesdiscoveredradio waves coming from space
The presence of ozonecausesthe , reflection of radio waves to Earth
Presence of ozonecausesthe reflection of radio waves to Earth
Heinrich hertzthus discoveredradio waves , a type of electromagnetic waves
Evidence of a black hole at the centre of our galaxy ... 1931discoveredradio waves coming from the region
1931discoveredradio waves coming from the region
Pesence of ozonecausesthe reflection of radio waves to earth
Apparently NASA astronautsdiscoveredradio waves orbiting the earth
the American physicist Karl Jansky(passive) had been discovered byRadio waves from space
scanning devicesdesignedto use radio waves
first(passive) were ... discoveredRadio waves from space
Electromagnetic wavescomposedof light and radio waves
in 1932(passive) were discoveredRadio waves from space
accidentally(passive) were discoveredRadio waves from space
accidentally(passive) were discovered Radio waves from space
the equationsleadto everything from radio waves
in 1930(passive) were first discoveredRadio waves from space
When I startedhad ... inventedradio waves yet
Grote Reber 's interest ... Karl Janskyhad discoveredradio waves emanating from space
an energycausesby using radio waves
equipmentdesignedto transmit and receive radio waves
Students then learn general concepts about magnetic fieldsleadinginto how radio waves are created and transmitted
in 1887(passive) were discoveredRadio Radio waves
his " merry - go - round " radio antennadiscoveredradio waves from outer space
mandiscoveredradio waves and uses them in modern technology
a black hole at the centre of our galaxy ... 1931discoveredradio waves coming from
an aluminum - coated Mylar balloondesignedto reflect radio waves back to earth
during which Thomas Edison attempted unsuccessfullyto discoverradio waves from the sunlight
unlicensed devicesspecifically designedto emit radio waves
or not the collapse of a strange star 's crustcould resultin electromagnetic radiation other than radio waves
by the combination of radiation from the first stars and the effect of dark matter(passive) caused byradio waves
the term Hertz ... the German physicist Heinrich Rudolf Hertzhad discoveredradio waves
a German scientist called Heinrich Hertzdiscoveredradio waves
cancercan causecancer
the pressure inside the disc to be reducedcausesthe pressure inside the disc to be reduced
at the receiverto causeat the receiver
Diseases(passive) can be caused byDiseases
Diseases(passive) can be causedDiseases
occasionallymay ... causeoccasionally
the ground to heatcausingthe ground to heat
X - rays and the natural radiation of radium(passive) were discoveredX - rays and the natural radiation of radium
the groundcausingthe ground
auroras on Earthcausesauroras on Earth
some people a lot of psychic distresscausesome people a lot of psychic distress
adverse health effectscausesadverse health effects
adverse health effectsdoes ... causeadverse health effects
to bandwidth inefficiencyleadto bandwidth inefficiency
the influence of electromagnetic interference ( EMI(passive) caused bythe influence of electromagnetic interference ( EMI
a thermal reaction within the dermisto causea thermal reaction within the dermis
static and other interference to all small radio devices in an areato causestatic and other interference to all small radio devices in an area
disturbances(passive) caused bydisturbances
Antennas(passive) can be designedAntennas
heat damage to the bodyto causeheat damage to the body
earthquakes are controlled by the U.S. militaryto causeearthquakes are controlled by the U.S. military
earthquakes are controlled by the U.S. militaryto causeearthquakes are controlled by the U.S. military
earthquakes are controlled by tto causeearthquakes are controlled by t
earthquakesto causeearthquakes
group infections(passive) caused bygroup infections
Other coils in the unit(passive) are designedOther coils in the unit
earthquakes and other nature disasters to any point and target on the Earthto causeearthquakes and other nature disasters to any point and target on the Earth
EMFISIS(passive) is designedEMFISIS
EMFISIS(passive) is designedEMFISIS
earthquakes and other nature disastersto causeearthquakes and other nature disasters
the effect(passive) set ... bythe effect
a problem under expected usage loadsto causea problem under expected usage loads
in multipath interferenceresultingin multipath interference
This radiation(passive) has been discoveredThis radiation
brain damagecould causebrain damage
practical applicationsresultingpractical applications
interference(passive) caused byinterference
cancercausecancer
cancer(passive) caused bycancer
Radio Frequency , or RF , interference from electromagnetic radiation(passive) caused byRadio Frequency , or RF , interference from electromagnetic radiation