[30-Second Curiosity] Today's Pointless Wonder!

We deliver today's most useless yet intriguing question in a short 30-second video.

• Why double paper cups for hot drinks?
• Not just fancy — it’s science!
• A thin layer of air forms between cups
• That air blocks heat from reaching your hand
• Same trick used in thermos bottles and winter coats

👇 영상으로 확인해보세요!

📌 For more news, visit the Goldfather News Clip channel and blog.