@Crypto888 7 July 2021 more from that month

Summer is here, the temperature is getting higher and higher everywhere, and my phone is too, It was so hot that the alarm caused the Internet and hotspots to be shut down automatically that I have to find a way to help it cool down the temp. as we know Thermally conductive materials of metal ranking 1. Silver 2. Copper 3. Gold Since there are no silver coins on hand So I chose the coin(1NT$) with the higher copper It’s worked to drop by about 4~5 degrees Celsius. Of course, use it with a fan can get better.