How Straddling Pendulum Seismic Isolation Base works to protect a structure against earthquake forces The principal of base isolation is to change the "swing" frequency (fundamental frequency) of the building. We want to make the building take longer to sway back and forth, because we want to misalign the fundamental frequency of the structure with the peak frequency of the EQ. Most EQs deliver the highest force in the 1 cycle/sec range. So if we make the building take much longer, say 4 seconds

Unlock the secrets of the pendulum cast technique! Learn how to lift your fly and create slack for a natural presentation, even in challenging conditions. Perfect your skills to entice fish and improve your catch rate. Dive in and enhance your fishing game! #FishingTechniques #PendulumCast #FlyFishing #FishingTips #CatchMoreFish #OutdoorSkills #Angling #FishingCommunity #SlackLine #FishOn | Sunray

240M Flat Arc Pendulum Cast by Master Caster Angel 💪🏾😱🤯 #longcasting #surfcasting #japanfishing #fyp #fypシ゚ #fbreelsvideo #fbreelsfypシ゚ #viralreels #viralpost #viralvideo please like and share thanks for watching 💪🏾🤙🏾 #yesssaaaaaaaaaa | Yak Machine