💥 Gate Square Event: #PTB Creative Contest# 💥
Post original content related to PTB, CandyDrop #77, or Launchpool on Gate Square for a chance to share 5,000 PTB rewards!
CandyDrop x PTB 👉 https://www.gate.com/zh/announcements/article/46922
PTB Launchpool is live 👉 https://www.gate.com/zh/announcements/article/46934
📅 Event Period: Sep 10, 2025 04:00 UTC – Sep 14, 2025 16:00 UTC
📌 How to Participate:
Post original content related to PTB, CandyDrop, or Launchpool
Minimum 80 words
Add hashtag: #PTB Creative Contest#
Include CandyDrop or Launchpool participation screenshot
🏆 Rewards:
🥇 1st
The human sensory range is a narrow slice of the physical world. For vision, humans detect only electromagnetic waves within approximately 430–790 terahertz, corresponding to the visible light spectrum of violet through red. Outside this range lie ultraviolet light, X-rays, gamma rays, infrared, microwaves, and radio waves—phenomena invisible to us but detectable with instruments. Similarly, human hearing is restricted to frequencies between about 20 hertz and 20 kilohertz, with sensitivity declining with age, particularly for higher frequencies.
This limitation means most of the universe’s light and sound information is imperceptible to humans without technological aid. Many animals far exceed these ranges: bees can see ultraviolet patterns on flowers, snakes can detect infrared heat signatures, and elephants communicate with infrasonic rumbles below human hearing. These comparisons underscore how human senses evolved to meet survival needs, not to capture the full spectrum of reality.