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in this office we checked out a lot of tech stuffs not only just smartphones laptops but sometimes weird and interesting gadgets so in today's curious step we're gonna check out this thing well this thing has been showing up in a lot of our videos and probably have been wondering what this is all about it's like a fan but it's not exactly a fan i'm warren with kl gadget tv this is episode three of curious tech what i'm holding on my hands right now is known as a 3d hologram fan or 3d hologram display as you can see when i spin this there are led lights that lights up and you know as it spins really fast it plays videos that is stored inside the memory so what's so different as compared to led panels well here's the thing when you actually spin extremely fast you basically don't realize that there are actually blades spinning like a fan so it's like one flat surface and when videos start