#ElectromagneticSpectrum

2025-03-14

Thought I'd share a couple of really super, topical briefs from the #Austrian #Military Academy, on the current situation in the #Ukriane #war and those operating within the #ElectromagneticSpectrum.

m.youtube.com/watch?v=IDRjughh

m.youtube.com/watch?v=6B6HRRBy

#EW #ElectronicWarfare #Dilomacy #InternationalRelations #Europe #Geopolitics #Politics #Technology

#NRAO #HamRadio Projectnrao_hamradio@mastodon.hams.social
2024-09-07

@bud_t @wb2ifs @thenrao @hamradiosci @arrl @goodgame_k5ata @ARDC made this all possible. They are hands-on (#hams-on 😂) with the #EMS #electromagneticspectrum #amateurradio #curriculum release

#NRAO #HamRadio Projectnrao_hamradio@mastodon.hams.social
2024-09-07

@bud_t @wb2ifs It's really important to mention that there is whole team involved in this effort. This release would not have happened without these folks superknova.org/odi-team/ #DEI #amateurradio #radioastronomy #electromagneticspectrum @thenrao

2023-09-13

Gamma rays have the smallest wavelengths and the most energy of any wave in the electromagnetic spectrum. They are produced by the hottest and most energetic objects in the universe, such as neutron stars and pulsars, supernova explosions, and regions around black holes.

...and they do not turn you into the Hulk.

#science #sciencefacts #gammarays #hulkout #wavelength #ElectromagneticSpectrum

2023-02-21

Recent studio experiments visualising relationships between minerals and the #ElectromagneticSpectrum.

Samples collected from sites of geophysical prospecting for #TechnologyMetals and fragments of electronics are lit with prisms used to separate the visible spectrum into its consituent colours.

Doping prisms with specific metals enables them to transmit certain frequencies of light. The reflection spectra of raw ores can be used to target #CriticalMinerals.

Two glass cubic prisms, saturated with the full spectrum of colour stand in front of a cracked screen whose shards resemble a mountainous landscape. A reflected pale blue light source hangs moon-like above them. All of this is seen soft focus on the back screen of a camera showing that is is recording, with various numbers telling the shutter speed, aperture and so on.A surface, strongly lit with a single light sourec and cluttered with various rocks. Two cubic prisms glued together hang in the foreground. The whole scene is doubled to the right by a mirror's reflection.

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