Science &THE IDEAS JOURNAL
Science. Systems. Possibility.
Explore questions across science, from everyday observations to the ideas and methods that help explain them. Clear reading for a curious mind.
No, gardenias are not edible. Every part of the plant — petals, leaves, stems, roots, and the sap — contains genipin and related iridoid compounds that can cause vomiting, diarrhea, and abdominal cramping within 30 to 120 minutes of…
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Inside the tools of discovery ↗Yes, some camellias are edible, but the answer depends entirely on which species and which part you mean. Camellia sinensis supplies the commercial tea leaf, and Camellia oleifera supplies a cooking oil eaten across southern China.
Intrusive thoughts are not automatically a sign of a disorder. Almost everyone experiences them, and population studies put the lifetime rate above 90 percent.
Antenna length matters because it sets the physical resonance of the radiator, and resonance decides how efficiently a transmitter's power leaves the feedline and becomes radiated radio energy.
Fern spores are not harmful to most humans in the way people fear—they do not burrow into skin, grow inside lungs, or poison you—but they are a genuine airborne allergen and a documented trigger of respiratory symptoms in sensitized people.
Abortion is one of the safest medical procedures in modern practice, and serious complications are rare.
Yes, black widows are small: adult females of the genus Latrodectus measure roughly 0.31 to 0.55 inches (8 to 14 mm) in body length, with a leg span of about 1.5 inches, and males are smaller still at 0.12 to 0.24 inches (3 to 6 mm).
Are gum grafts worth it? Yes, for most people with exposed tooth roots, progressive gum recession, or thin gum tissue that is not responding to conservative care.
Are babies born cross eyed? No, most are not — but many appear that way during the first two to four months of life.
The first premolar is the fourth tooth from the midline in each quadrant of the permanent dentition, positioned immediately behind the canine and in front of the second premolar.
No. Exit wounds are frequently larger than entrance wounds, but the reverse and near-equal outcomes occur in a substantial minority of cases.
Yes, chordates are segmented, but the segmentation is not uniform across the whole body and not all of it is equally obvious.
Are frog legs good for you? Yes, with caveats: they are a lean, high-protein meat delivering roughly 16-20 grams of protein and only about 1-2 grams of fat per 100-gram cooked portion, making them nutritionally closer to skinless chicken…
Liquid pills are not automatically better than regular pills.
Yes, heart attack and myocardial infarction are the same event, but the two terms are not interchangeable in precision. Myocardial infarction is the clinical diagnosis, defined by measurable heart muscle death from blocked blood flow.
No, not all vaginas are the same. Vaginal anatomy varies substantially between individuals in length, width, angle, color, rugae pattern, discharge, and microbiome.
Cousin marriages are legal in most of the world, including all 50 US states, but the risks are real and measurable: first cousins who have children face roughly a 1.7 to 2.8 percent higher chance of a serious birth defect than unrelated…
No, not all toads are poisonous, but the majority of the world's roughly 600 bufonid species produce at least some defensive toxins, and a small subset, most notoriously the cane toad, can seriously harm or kill a dog.
Yes, antibacterial bandages are safe for healthy people when used as labeled on minor cuts and scrapes, but they are not risk-free and are usually unnecessary.
Amoxicillin is a first-line backbone of Helicobacter pylori eradication, but it works only when stomach acid is suppressed enough to keep it stable—an estimated 60-70% of amoxicillin is degraded within an hour at pH below 2.
Yes, cow feet are healthy for most people in moderate portions, because they are a genuine collagen food that supplies glycine and hydrolyzed protein at a low cost per gram.
No, grolar bears are not universally sterile. Hybrids between polar bears and grizzly bears have produced viable offspring in both directions of the cross, and at least one captive hybrid pair, the polar-bear mother and grizzly-bear father…
For most people with estrogen receptor positive (ER+) breast cancer, collagen supplements are not known to be unsafe, but the evidence is indirect and the risk is not zero.
Itchy eyes alone are not a typical sign of COVID-19. The CDC does not list eye itching among the core symptoms, and large cohort data place conjunctivitis in roughly 1 to 3 percent of confirmed cases.
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