บรรยาย ณ รังสิต คลอง 3 จ.ปทุมธานี 7/2/64
ปรับปรุงแก้ไขเสียงรบกวนแล้วครับ
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เครดิตภาพ:
รูพรุน By Materialscientist, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=12597091
https://stickmanphysics.com/wp-content/uploads/2020/03/EM-Waves-Radio-Waves.gif
Waventerference.gif
By Lookangmany thanks to author of original simulation = Wolfgang Christian and Francisco Esquembre author of Easy Java Simulation = Francisco Esquembre - Own work, CC BY-SA 4.0, https://commons.wikimedia.org/w/index.php?curid=39309437
Coronavirus (23312_lores.jpg)
https://phil.cdc.gov/Details.aspx?pid=23312
By Gregory Maxwell - From File:Yin yang.png, converted to SVG by Gregory Maxwell., Public Domain, https://commons.wikimedia.org/w/index.php?curid=364239