العلوم والبيئة
Sniffer dogs, bloodstain patterns and ballistics evidence under the microscope in new studies
المصدر: Phys.org - latest science and technology news stories · نُشر
CSI may have spawned innumerable spinoffs, but it turns out you can't trust TV—or sniffer dogs. New research is questioning the scientific basis for the dogs' use by police, as well as aspects of bloodstain pattern analysis and ballistics evidence routinely used in courts.
CSI may have spawned innumerable spinoffs, but it turns out you can't trust TV—or sniffer dogs. New research is questioning the scientific basis for the dogs' use by police, as well as aspects of bloodstain pattern analysis and ballistics evidence routinely used in courts.
أخبار ذات صلة
Ancient DNA evidence narrows down when people first reached the Americas
One of the unresolved mysteries about the history of the Americas is when the first people arrived. Despite extensive debate centering on genetic, archaeological and environmental evidence, there is still no consensus or conclusive proof. Did they enter before, during or after th
Phys.org - latest science and technology news stories ·
Standard 3D printers let labs build and adapt tools for bacterial research
Studying microorganisms requires instruments with extremely high precision. Such instruments are expensive and take a long time to manufacture using traditional methods, which has slowed progress in the field. It has also been difficult for the biologists who use these instrument
Phys.org - latest science and technology news stories ·
Astronomers catch a star slowly snacking on a brown dwarf, 300 light years away
Like Earth, most planetary bodies circle their star in stable, detached orbits. These companionable systems can suddenly change when a planet comes too close to its star. In such a close encounter, a star can pull the planet in and swallow it whole.
Phys.org - latest science and technology news stories ·
How game publishers set international prices: A study reveals four pricing approaches on Steam
Although digital platforms make it possible to sell the same product globally, prices often vary across countries because of differences in purchasing power, currencies, taxation and other market conditions. At the same time, the transparency of online prices enables consumers to
Phys.org - latest science and technology news stories ·
A health app designed for teachers
A new app is designed to help teachers stay healthy in their day-to-day work. The digital tool is the result of a three-year collaborative project between the Technical University of Munich (TUM) and health insurance provider AOK Bayern.
Phys.org - latest science and technology news stories ·