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Where were fingerprints first used in detective work?
Fingerprints were first used in detective work in the 19th century in British India by Sir William James Herschel. He implemented the use of fingerprints as a means of identifying individuals and preventing impersonation.
Is there a way to find vitamin C in food without using DCPIP?
You could use drops of iodine solution (Povidone-iodine may work)to estimate vitamin C in solutions. Estimate the number of drops/volume needed to titrate a known sample of vitamin C (a tablet). Then apply that to unknown samples.
How does white iodine work on arthritis?
There is no evidence that it does.
Do gorilla have finger print?
Yes, gorillas do have unique fingerprints, much like humans. Their fingerprints are not only used for identification but also serve functional purposes, such as gripping and manipulating objects. Each gorilla's fingerprints are distinct, allowing for individual recognition, similar to the way human fingerprints work.
What precaution should be taken in iodine solution?
Iodine solution is toxic if ingested, so it should be kept out of reach of children and pets. It should be stored in a tightly closed container, away from heat and light. When using iodine solution, avoid contact with skin and eyes, and work in a well-ventilated area to prevent inhalation of fumes.
What are Francis Galton's contributions about fingerprinting?
Francis Galton made significant contributions to the study of fingerprinting by establishing the uniqueness and permanence of fingerprints. In his 1892 book, "Fingerprints," he categorized fingerprint patterns into loops, whorls, and arches, laying the groundwork for systematic fingerprint classification. Galton's research provided the scientific basis for using fingerprints as a reliable method of personal identification, influencing law enforcement practices and forensic science. His work helped establish fingerprints as a key tool in criminal investigations and personal identification.
Who undertook the first definitive study of fingerprints as a method of personal identifications?
Sir Francis Galton, an English scientist, conducted the first definitive study of fingerprints in the late 19th century. His work laid the foundation for the use of fingerprints as a reliable method of personal identification.
Give you a slogan for iodine?
Here are some rhyming iodine slogans: "Goiters are not fine, how about some iodine?" "If you mash your finger in a door, put some iodine on that sore." "Iodine, element 53, does plenty of good for you and me." "Iodine is fine for the injuries of mine."
What happens if you use expired iodine for medical purposes?
Using expired iodine for medical purposes can be ineffective and potentially harmful. The expired iodine may not work as intended, leading to inadequate disinfection or treatment of wounds. Additionally, expired iodine may have degraded and could cause skin irritation or allergic reactions. It is important to always check the expiration date and properly dispose of expired medical supplies to ensure safe and effective treatment.
How was the first fingerprint found?
The first fingerprint was identified in 1892 by Sir Francis Galton, a British scientist who studied the unique patterns and characteristics of fingerprints. He published a book detailing his findings on fingerprint patterns and their uniqueness for identification purposes. Galton's work laid the foundation for the use of fingerprints in forensic science, leading to their adoption in criminal investigations. The first criminal case solved using fingerprints occurred in 1901, when they were used to confirm the identity of a suspect in a murder case in Argentina.
Why is Galton called the gran father of fingerprints?
Sir Francis Galton is often referred to as the "grandfather of fingerprints" due to his pioneering work in the study of fingerprint patterns and their uniqueness for personal identification. In the late 19th century, he conducted extensive research that classified fingerprints into categories and established the principles of fingerprint analysis, which laid the foundation for forensic science. His influential book, "Fingerprints," published in 1892, detailed his findings and helped popularize the use of fingerprints for criminal identification. Galton's contributions significantly advanced the understanding of fingerprints as a reliable method for individual identification.
How does the iodine test work?
The iodine test is based on the reaction between iodine and starch. Iodine molecules interact with the helical structure of starch molecules to form a blue-black complex. This color change indicates the presence of starch in a solution.
