21Sep 2022 by Nigel Fleming No Comments
linkedin post 2021-01-15 04:51:44

linkedin post 2021-01-15 04:51:44

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SATNAV. “Satellite navigation systems such as the U.S. Global Positioning System (GPS) or the European Galileo operate by transmitting radio waves from the spacecraft to ground-based receivers. Signals from several satellites are then used to calculate the observing position to high accuracy.” https://link.springer.com/article/10.12942/lrsp-2007-1 View in LinkedIn
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21Sep 2022 by Nigel Fleming No Comments

linkedin post 2021-01-14 05:26:17

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THE ISSUE OF SCALE. “The universe is even smaller than it is large, and therefore the emptiness within is even greater than the cosmic emptiness between the stars and galaxies, and it is filled with active yet immaterial ingredients, which to the best of our knowledge we call dark energy on cosmic scales and virtual particles on atomic scales.” https://lnkd.in/gnCMTdE View in LinkedIn
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21Sep 2022 by Nigel Fleming No Comments
linkedin post 2021-01-14 05:24:20

linkedin post 2021-01-14 05:24:20

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AIRPLANE EXPOSURES. “Furthermore, as the atmospheric shielding is significantly reduced above 10 km altitude, aircraft crews and passengers on transpolar routes are subjected to increased radiation doses from the energetic particles.” https://link.springer.com/article/10.12942/lrsp-2007-1 View in LinkedIn
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21Sep 2022 by Nigel Fleming No Comments
linkedin post 2021-01-14 05:23:00

linkedin post 2021-01-14 05:23:00

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RISKS. “However, astronauts in orbit are relatively unprotected especially during the high-latitude parts of the spacecraft orbit. For example, the International Space Station reaches latitudes above 50°, which is sufficiently high to increase the health risks especially during extra-vehicular operations.” https://link.springer.com/article/10.12942/lrsp-2007-1 View in LinkedIn
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21Sep 2022 by Nigel Fleming No Comments
linkedin post 2021-01-14 05:22:00

linkedin post 2021-01-14 05:22:00

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EARTH’S BUFFER. “The atmosphere effectively shields the Earth from high-energy particles such that only the highest-energy particles can gain access to the lower layers of the atmosphere, and only in the polar regions where the geomagnetic field is weakest.” https://link.springer.com/article/10.12942/lrsp-2007-1 View in LinkedIn
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21Sep 2022 by Nigel Fleming No Comments
linkedin post 2021-01-15 04:54:40

linkedin post 2021-01-15 04:54:40

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RF SIGNALS. “The ionosphere is heavily utilized as a transmitter of radio-frequency communication signals. As every radio amateur knows, the radio wave communication is significantly influenced by the ionospheric properties and especially the auroral currents.” https://link.springer.com/article/10.12942/lrsp-2007-1 View in LinkedIn
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