科学与环境

Sniffer dogs, bloodstain patterns and ballistics evidence under the microscope in new studies

来源: Phys.org - latest science and technology news stories · 发布于

Sniffer dogs, bloodstain patterns and ballistics evidence under the microscope in new studies
来源: Phys.org - latest science and technology news stories

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.

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Ancient DNA evidence narrows down when people first reached the Americas
科学与环境

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
科学与环境

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 ·

A health app designed for teachers
科学与环境

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 ·