Science History - Daily Podcast Por Quiet. Please arte de portada

Science History - Daily

Science History - Daily

De: Quiet. Please
Escúchala gratis

Acerca de esta escucha

 This Day in History - Science is an podcast that attempts to explores the remarkable moments that shaped the scientific landscape. Each episode, we journey back in time to rediscover groundbreaking discoveries, pivotal inventions, and the fascinating individuals who dared to push the boundaries of knowledge. From the invention of the light bulb to the discovery of DNA, we delve into the stories behind the science that changed our world.Listen to This Day in History - Science to:
  • Learn about the most important scientific discoveries of all time
  • Meet the brilliant minds who made them possible
  • Understand how science has shaped our world
  • Be inspired to explore your own curiosity about science
This Day in History - Science is a great podcast for anyone who is interested in science, history, or just wants to learn something new.

Subscribe to This Day in History - Science on your favorite podcast app today!










  • history
  • discovery
  • invention
  • innovation
  • technology
  • medicine
  • space
  • exploration
  • education
  • learning
Copyright 2024 Quiet. Please Ciencia
Episodios
  • Mariner 4: First Eyes on the Red Planet

    Mariner 4: First Eyes on the Red Planet
    Jul 14 2025
    On July 14, 1965, the Mariner 4 spacecraft made history by becoming the first spacecraft to successfully fly by Mars, providing the first close-up images of another planet. This groundbreaking mission marked a significant milestone in the exploration of our solar system and paved the way for future Mars missions.

    Launched on November 28, 1964, from Cape Canaveral, Florida, Mariner 4 embarked on an eight-month journey to the Red Planet. The spacecraft was designed and built by NASA's Jet Propulsion Laboratory (JPL) and was equipped with a suite of scientific instruments, including a television camera, to study Mars from close range.

    As Mariner 4 approached Mars, excitement and anticipation grew among the mission control team and the public. On July 14, 1965, at approximately 11:40 PM UTC, the spacecraft reached its closest point to Mars, coming within 6,118 miles (9,846 kilometers) of the planet's surface. During the flyby, Mariner 4 captured a series of 21 images, each taking about 10 minutes to transmit back to Earth.

    The images revealed a stark and cratered landscape, much like that of the Moon. This came as a surprise to many scientists who had expected Mars to have a more Earth-like appearance. The images also showed no signs of the Martian "canals" that had been popularized by the astronomer Percival Lowell in the early 20th century.

    In addition to the images, Mariner 4 collected valuable data about the Martian atmosphere, magnetic field, and radiation environment. The spacecraft detected a thin atmosphere composed primarily of carbon dioxide and a weak magnetic field, suggesting that Mars had no active volcanic activity and had lost much of its atmosphere over time.

    The success of the Mariner 4 mission marked a turning point in the exploration of Mars and set the stage for future missions. It demonstrated that spacecraft could survive the long journey to Mars and operate successfully in its environment. The mission's findings also challenged prevailing theories about the planet and sparked new questions about its geological history and potential for supporting life.

    In the decades that followed, numerous spacecraft have visited Mars, each building upon the legacy of Mariner 4. These missions have revealed a complex and dynamic world, with evidence of ancient water flows, volcanic activity, and even the potential for habitable conditions in its past.

    Today, Mars continues to be a prime target for exploration, with ongoing missions like NASA's Perseverance rover and the European Space Agency's ExoMars Trace Gas Orbiter seeking to unravel the planet's mysteries and search for signs of past or present life.

    The flyby of Mars by Mariner 4 on July 14, 1965, remains a landmark achievement in the history of space exploration, representing the first time humanity had a close-up view of another planet. Its success paved the way for a new era of planetary science and inspired generations of scientists and explorers to continue reaching for the stars.


    Some great Deals https://amzn.to/49SJ3Qs

    For more check out http://www.quietplease.ai
    Más Menos
    3 m
  • Beyond the Milky Way: Hubble's Universe-Expanding Discovery

    Beyond the Milky Way: Hubble's Universe-Expanding Discovery
    Jul 13 2025
    On July 13, 1923, a groundbreaking announcement was made that would forever change our understanding of the universe. At the 88th meeting of the American Astronomical Society held in Pasadena, California, Edwin Hubble, a young astronomer working at the Mount Wilson Observatory, presented his findings on the nature of spiral nebulae.

    For centuries, astronomers had been puzzled by the mysterious spiral-shaped objects that could be observed in the night sky. Many believed that these nebulae were merely gas clouds within our own Milky Way galaxy. However, Hubble's meticulous observations and calculations revealed a shocking truth: these spiral nebulae were actually entire galaxies themselves, lying millions of light-years beyond the boundaries of our own galaxy.

    Hubble's discovery was based on his study of Cepheid variable stars, a type of star whose brightness fluctuates in a predictable pattern. By measuring the period of these fluctuations, astronomers could calculate the star's true brightness, and by comparing this to its apparent brightness, they could determine its distance. Hubble had been using the 100-inch Hooker Telescope at Mount Wilson, the most powerful telescope of its time, to observe Cepheid variables in several spiral nebulae, including the Andromeda Nebula (now known as the Andromeda Galaxy).

    To the astonishment of the astronomical community, Hubble's calculations revealed that the Andromeda Nebula was located at a staggering distance of approximately 900,000 light-years from Earth. This was far beyond the bounds of the Milky Way, which was estimated to be only about 100,000 light-years in diameter. Hubble's findings provided conclusive evidence that the spiral nebulae were not part of our galaxy but were instead separate "island universes," each containing billions of stars.

    The implications of Hubble's discovery were profound. It dramatically expanded the known size of the universe and challenged the prevailing notion that the Milky Way encompassed the entire cosmos. The realization that there were countless galaxies beyond our own marked a turning point in our understanding of the scale and structure of the universe.

    Hubble's groundbreaking work laid the foundation for the field of extragalactic astronomy and paved the way for future discoveries. In the following years, Hubble continued his research, exploring the properties and distribution of galaxies. He developed the Hubble Classification Scheme, which categorized galaxies based on their morphology, and he discovered a relationship between a galaxy's distance and its redshift, known as Hubble's Law. This relationship provided evidence for the expansion of the universe, a key component of the Big Bang theory.

    The legacy of Edwin Hubble's discovery on July 13, 1923, cannot be overstated. It forever changed our cosmic perspective and opened up new avenues of scientific inquiry. Today, astronomers continue to build upon Hubble's work, using advanced telescopes and techniques to study the vast expanse of galaxies that populate our universe. The Hubble Space Telescope, named in his honor, has been instrumental in deepening our understanding of the cosmos and has provided stunning images of distant galaxies, revealing the beauty and complexity of the universe we inhabit.

    As we commemorate this remarkable achievement in the history of science, we are reminded of the power of human curiosity and the profound insights that can be gained through dedicated observation and analysis. Edwin Hubble's discovery on this day in 1923 stands as a testament to the enduring quest for knowledge and the limitless wonders that await us in the depths of the universe.


    Some great Deals https://amzn.to/49SJ3Qs

    For more check out http://www.quietplease.ai
    Más Menos
    4 m
  • Pathfinder's Mars Milestone: First Rover Explores Red Planet

    Pathfinder's Mars Milestone: First Rover Explores Red Planet
    Jul 12 2025
    On July 12th in Science History, one significant event took place in 1997 when the NASA Pathfinder mission successfully landed on Mars. The mission consisted of the Pathfinder lander and the Sojourner rover, which became the first robotic rover to explore the surface of another planet.

    The Pathfinder spacecraft was launched on December 4, 1996, and after a seven-month journey, it entered the Martian atmosphere, descending to the surface using a combination of parachutes, retrorockets, and airbags. The landing site, located in an ancient floodplain called Ares Vallis, was chosen for its potential to harbor evidence of past water activity on Mars.

    Upon landing, the Pathfinder lander, officially named the Carl Sagan Memorial Station, opened like a three-petaled flower, revealing the Sojourner rover nestled inside. The lander served as a base station for the rover, providing it with power and communications relay to Earth.

    Sojourner, named after the Civil Rights activist Sojourner Truth, was a microwave-sized, six-wheeled rover weighing just 11.5 kg (25 pounds). Despite its small size, Sojourner was equipped with an array of scientific instruments, including cameras and an Alpha Proton X-ray Spectrometer (APXS) to analyze the composition of Martian rocks and soil.

    Over the course of its 83-day mission, Sojourner traversed a total distance of about 100 meters (330 feet), investigating the geology of the landing site. The rover's APXS instrument provided the first in-situ analysis of Martian rock composition, revealing the presence of basaltic rocks and suggesting that water had played a role in their formation.

    The images sent back by the Pathfinder lander and Sojourner rover captivated the public and sparked renewed interest in Mars exploration. The mission demonstrated the feasibility of low-cost, small-scale planetary exploration and paved the way for future Mars rovers, such as Spirit, Opportunity, and Curiosity.

    The success of the Pathfinder mission was a testament to the ingenuity and perseverance of the NASA team, who had developed the mission on a relatively tight budget and schedule. The mission's achievements were celebrated by scientists and space enthusiasts around the world, marking a significant milestone in the exploration of the Red Planet.

    Today, the legacy of the Pathfinder mission lives on, as NASA continues to send increasingly sophisticated rovers to Mars, seeking signs of past habitability and the potential for life. The data gathered by Pathfinder and Sojourner laid the groundwork for our current understanding of Mars and its geological history, setting the stage for future missions that may one day answer the question of whether life ever existed on our neighboring planet.


    Some great Deals https://amzn.to/49SJ3Qs

    For more check out http://www.quietplease.ai
    Más Menos
    3 m
Todavía no hay opiniones