For decades, workers at a nuclear facility in Kentucky were exposed to dangerous levels of radiation. Management assured them nothing was wrong. Then four friends risked everything to reveal the truth.
Issue no. 178, “Toxic Lies,” is now available:
Was the dust bad for the environment? Maybe. But everyone at the plant acted like it was harmless. To prove this, a plant manager once sprinkled some on his sandwich and ate it. Jenkins and his coworkers rarely wore respirators—only when the quantity of dust “got so bad that breathing or seeing was impossible,” Jenkins later said. They never changed out of their white coveralls for lunch. Dust clung to their clothing, spreading radiation wherever they went.
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9th grader Sirish Subash has won the 3M Young Scientist Challenge, inventing a handheld device to detect pesticide residues on produce.
"A 9th grader from Snellville, Georgia, has won the 3M Young Scientist Challenge, after inventing a handheld device designed to detect pesticide residues on produce.
Sirish Subash set himself apart with his AI-based sensor to win the grand prize of $25,000 cash and the prestigious title of “America’s Top Young Scientist.”
Like most inventors, Sirish was intrigued with curiosity and a simple question. His mother always insisted that he wash the fruit before eating it, and the boy wondered if the preventative action actually did any good.
He learned that 70% of produce items contain pesticide residues that are linked to possible health problems like cancer and Alzheimer’s—and washing only removes part of the contamination.
“If we could detect them, we could avoid consuming them, and reduce the risk of those health issues.”
His device, called PestiSCAND, employs spectrophotometry, which involves measuring the light that is reflected off the surface of fruits and vegetables. In his experiments he tested over 12,000 samples of apples, spinach, strawberries, and tomatoes. Different materials reflect and absorb different wavelengths of light, and PestiSCAND can look for the specific wavelengths related to the pesticide residues.
After scanning the food, PestiSCAND uses an AI machine learning model to analyze the lightwaves to determine the presence of pesticides. With its sensor and processor, the prototype achieved a detection accuracy rate of greater than 85%, meeting the project’s objectives for effectiveness and speed.
Sirish plans to continue working on the prototype with a price-point goal of just $20 per device, and hopes to get it to market by the time he starts college." [Note: That's in 4 years.]
The amount of posts I’ve seen lately on r/whatsthisbug of fly eggs deposited on food that’s been left out is WILD. Please...please. Cover food that is left on the counter or wherever during fly season. ESPECIALLY at outdoor picnics. It only takes a couple minutes for a fly to lay a huge cluster of eggs onto food.
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Microplastics are quietly moving from soil into crops like lettuce, wheat, and carrots, ultimately reaching the human food supply. Agricultural soils now contain about 23 times more microplastics than the oceans, and these tiny plastics have been detected in a variety of food plants.
