Eli5: How are those experimental sattelites which transport energy from space to earth not giant deathrays?
In: 7
A death ray requires an enormous amount of power. The Space Solar Power Demonstrator sent a very small amount of energy to a rooftop receiver, so there was little to no risk to people. The system uses microwave energy, which is commonly used throughout earth, most frequently for Internet/network transmission. As systems improve and increase power, operators will need to ensure that unsafe levels of transmitted energy are not directed at people. Today’s practices of elevating signals and fencing in transmission and reception areas will likely be sufficient. More info is available from the FAA’s RF Safety FAQ… [https://www.fcc.gov/engineering-technology/electromagnetic-compatibility-division/radio-frequency-safety/faq/rf-safety](https://www.fcc.gov/engineering-technology/electromagnetic-compatibility-division/radio-frequency-safety/faq/rf-safety)
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