Hidden Facts
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History

Science & Technology

Inventions, medicine, space — and the scientists history tried to erase.

24 articles shown
Eratosthenes Measures Earth

Eratosthenes calculated Earth's circumference in 240 BCE using a stick and a well. He was the chief librarian of the Library of Alexandria and built upon earlier mathematicians' work. Eratosthenes published his findings by 230 BCE, a groundbreaking achievement in mathematics.

Arjun Mehtaall
Brazilian Teen Invents Rapid Leukemia Detector

A 15-year-old Brazilian boy invented a device that detects leukemia in 10 minutes. The device was presented at a science fair in São Paulo, Brazil. This invention has the potential to save countless lives by providing rapid detection.

Arjun Mehtaall
Bolivian Scientist Discovers Altitude Sickness Cure

Dr. Juan Vargas found a cure for altitude sickness in a plant used for centuries. The breakthrough was made in La Paz, Bolivia, after years of research. This discovery has the potential to save countless lives worldwide

Arjun Mehtaall
Accidental Pacemaker Invention Changes Cardiology

John Hopps stumbled upon the pacemaker while recording a frog's heartbeat. His experiment took an unexpected turn, leading to a groundbreaking discovery. This discovery revolutionized cardiology and saved countless lives.

Arjun Mehtaall
Ibn al-Haytham Invents Camera Obscura

Ibn al-Haytham wrote a groundbreaking book on optics between 1085 and 1087. His work included a description of the camera obscura, an invention that would later influence scientists. Ibn al-Haytham's discovery preceded Europe's by 500 years, making him a pioneer in the field of optics.

Arjun Mehtaall
Vietnamese Teen Creates Biodegradable Banana Plastic

Nguyen Thi Thu Trang, a 19-year-old student, invented biodegradable plastic from bananas. Her project was presented at the Vietnam Science and Technology Competition in 2019. Trang's innovative material offers a sustainable alternative to traditional plastics.

Arjun Mehtaall
Cambodian Engineer Builds Satellite from Scavenged Parts

A Cambodian engineer built a satellite from scavenged parts in 2018. The satellite, named MENG, was launched from the International Space Station on a $2,000 budget. This achievement showcases the engineer's ingenuity and resourcefulness.

Arjun Mehtaall
MRI Inventor Refuses Patent for Humanity

Richard Ernst and Raymond Damadian created the first MRI machine in 1977. Damadian's decision not to patent the invention was unprecedented and selfless. This choice allowed the MRI technology to be widely available and improved upon by others.

Arjun Mehtaall
16th-Century Barber Discovers Blood Circulation

A 16th-century barber discovered blood circulation before Harvey. His findings were initially met with skepticism and laughter. The barber's discovery was a significant milestone in medical history.

Arjun Mehtaall
Teen Inventor Creates Trampoline

Marjorie Newell, 13, invented the trampoline in 1936. She used canvas and springs in her backyard. This marked a new era in sports and recreation.

Arjun Mehtaall
Antonio Ereditato's Faster-Than-Light Neutrino Claim

Antonio Ereditato announced neutrinos traveling faster than light in 2011. The discovery sparked intense debate and scrutiny. Ereditato's claim was later disputed and proved incorrect

Arjun Mehtaall
Sewing Machine Inventor's Brush with Mob Violence

Elias Howe patented the sewing machine in 1846, threatening tailors' livelihoods. By 1851, his machine had become a significant threat, sparking anger among tailors and seamstresses. The invention's impact was immediate and far-reaching, changing the textile industry forever.

Arjun Mehtaall
Felix Hoffmann: Founder of Modern Pharma

Felix Hoffmann synthesized the first synthetic drug on August 27, 1897. This breakthrough by the German chemist at Bayer changed the medical landscape. Hoffmann's discovery paved the way for the modern pharmaceutical industry.

Arjun Mehtaall
Kenyan Teen Inventor Creates Solar Suitcase

A 17-year-old Kenyan girl invented a solar-powered suitcase to help sick children. The suitcase provides a reliable source of power for medical equipment in areas with limited access to electricity. Cynthia Mwangi's innovative design aims to improve healthcare for children in need.

Arjun Mehtaall
Nigerian Engineer Builds Helicopter from Scrap

Mubarak Muhammad Abdullahi built a helicopter from scrap metal in his backyard in Kano, Nigeria. His project demonstrated resourcefulness and technical skills, stunning the local community. Abdullahi's achievement sparked international interest and admiration.

Arjun Mehtaall
iPhone Creator Regrets Smartphone Impact

Steve Jobs unveiled the iPhone in 2007. By 2010, he was concerned about its societal impact, particularly on children. Jobs' concerns were documented by his biographer Walter Isaacson.

Arjun Mehtaall
Doctor Proves Ulcers Caused by Bacteria

Barry Marshall discovered ulcers are caused by bacteria. He researched the link for years at Royal Perth Hospital. Marshall tested his theory by drinking bacteria

Arjun Mehtaall
Teen Physicist Henri Becquerel's Fatal Discovery

Henri Becquerel discovered radioactivity at 19 years old. His finding changed the world but led to his death. Becquerel's discovery paved the way for future scientists

Arjun Mehtaall
Accidental Gunpowder Inventor Wei Boyang

Chinese alchemist Wei Boyang created gunpowder while searching for an elixir of immortality. His discovery in 850 revolutionized warfare by 1044. Wei Boyang's experiment with saltpeter, sulfur, and charcoal changed history.

Arjun Mehtaall
Rudolf Diesel's Mysterious Death

Rudolf Diesel disappeared from the SS Dresden in 1913. His body was found in the North Sea ten days later. The circumstances surrounding his death remain unclear to this day.

Arjun Mehtaall
Breaking Nazi Codes

Bill Tutte cracked the Nazi's Lorenz cipher at 26. His work significantly contributed to the Allied war effort. Tutte's achievements remained largely unknown for decades.

Arjun Mehtaall
Afghan Girl Disguises Herself as Boy for Education

A 14-year-old Afghan girl named Nasreen disguised herself as a boy to attend a science class in Kabul. The Taliban regime had banned girls from attending school, prompting Nasreen to take drastic measures. Her desire for education led her to risk her safety and well-being to learn.

Arjun Mehtaall
Medieval Islamic Scholar Invents Algebra

Muhammad ibn Musa al-Khwarizmi wrote a foundational math text in Baghdad. His work changed the course of history by 830. Al-Khwarizmi's manuscript was originally written in poetry, showcasing his creativity and knowledge.

Arjun Mehtaall
AK-47 Inventor's Eternal Regret

Mikhail Kalashnikov designed the AK-47 in 1947. He later expressed deep regret over its devastating impact. His invention led to immense human suffering.

Arjun Mehtaall