“Smart” sticker would let shoppers know if food hasn’t been kept cold

If you’re buying food that should have been kept cold right up until you took it off the shelf, it would certainly be good to know if it had actually reached room temperature at some point. An experimental new sticker could help, as it’s designed to te… Continue reading “Smart” sticker would let shoppers know if food hasn’t been kept cold

Risk of heart-related death may triple in extreme heat environments

People living in the hottest places on Earth could be up to three times as likely to die from a heart-related cause, according to a newly-published study. Global warming due to climate change has the potential to further worsen the heat-stress problem,… Continue reading Risk of heart-related death may triple in extreme heat environments

UN annual climate report shows 2019 was another record-breaking year

The United Nations and the World Meteorological Organization (WMO) have released the Statement on the State of the Global Climate in 2019. This annual report confirms that last year was another record-breaker, continuing a worrying trend that indicates… Continue reading UN annual climate report shows 2019 was another record-breaking year

See-Through Catalytic Converter

There’s always something to be learned from taking things apart. Sometimes the parts can be used for other things, sometimes they can be repaired or improved upon, but sometimes it’s all in good fun. Especially in this case where extremely high temperatures and combustible gasses are involved. This is from …read more

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Stylish Thermometer is DIY Hardware Perfection

Over the last few years, we’ve seen a steady improvement in the sort of custom hardware a dedicated individual can produce. With affordable desktop 3D printers and PCB fabrication services, the line between store bought and home built can get very blurry. This slick MQTT-connected thermometer created by [Martin Cerny] …read more

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How Ammo Temperature Will Affect Shooting Accuracy

The last time we visited the Hackaday shooting range we were all psyched up to get the right posture, breathe correctly, lower our heart rates and squeeze the trigger at exactly the right moment that the wandering cross hairs align with the target ……. and lastly accommodate the inevitable recoil. …read more

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Cheap Sensors and an SDR Monitor Conditions in this Filament Drying Farm

We don’t know where [Scott M. Baker] calls home, but it must be a pretty humid place indeed. After all, he has invested quite a bit in fancy vacuum storage containers to keep his 3D-printer filament dry, with the result being this sensor-laden filament drying farm.

[Scott] wasn’t content to …read more

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Xpedit is a Mood Ring for Mother Nature

Whether you’re in the woods or way up a mountain, basic knowledge of your environment can yield a lot of power. The more you know about the temperature, humidity, barometric pressure, and your altitude, the easier it is to predict future weather and stick to your height limits. Sure, you …read more

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High Precision Analog IO With Digital Pins

Reading the temperature of your environment is pretty easy right? A quick search suggests the utterly ubiquitous DHT11, which speaks a well documented protocol and has libraries for every conceivable microcontroller and platform. Plug that into your Arduino and boom, temperature (and humidity!) readings. But the simple solution doesn’t hit …read more

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Torturing an Instrumented Dive Watch, for Science

The Internet is a wild and wooly place where people can spout off about anything with impunity. If you sound like you know what you’re talking about and throw around a few bits of the appropriate jargon, chances are good that somebody out there will believe whatever you’re selling.

Case …read more

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