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Build a Radio Wave Detector With Balls of Aluminum Foil!
Here’s how you can hack together a radio transmitter and receiver out of stuff you have at home—and explore the weirdness of wireless.
First seen · 11:00 AM UTCMay 15, 2026
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Day after Ascension Day
Day after Ascension Day is observed in Belgium. Recognized nationally.
Public holiday
Bank closing day
Bank closing day is observed in Denmark (Banklukkedag). Recognized nationally.
Public holiday
Bank closing day
Bank closing day is observed in Greenland (Atuanngiffik). Recognized nationally.
Awareness
International Day of Families
A UN observance recognizing families of every configuration — blended, chosen, queer, traditional, tiny, enormous. Call someone.
Also on this date in history
All →2024
Prime Minister of Slovakia Robert Fico is shot and critically injured while meeting with supporters at an event in Handlová.
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The UN commemorates the Palestinian Nakba Day for the first time.
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An upsurge in violence in Iraq leaves more than 389 people dead over three days.
Milestone