Interactive Telescopes Evolution.

Telescopes Evolution Puzzle is a short online game, to sort the telescopes by year. Astronomy learning exercise to study the evolution of telescopes from 1500s to present days. Fun educational game, suitable for online lessons, interactive classes and exciting homework.

There are 8 telescopes top of the screen. Drag and drop them in the correct year in the evolution diagram. Make it for less than 9 tries for a good school mark.

The evolution of telescopes has been a remarkable journey, spanning over four centuries of innovation and discovery. Here's a brief overview of key developments in the history of telescopes:

• 1. Early Refracting Telescopes (1608-1700)
  1608: Hans Lippershey, a Dutch spectacle maker, is credited with creating the first practical telescope, which used a convex objective lens and a concave eyepiece.
  1609: Galileo Galilei improves on Lippershey's design and uses his telescope to make significant astronomical discoveries, such as the moons of Jupiter and the phases of Venus.
  1670: Johannes Hevelius constructs larger refracting telescopes with longer focal lengths, leading to better magnification and image clarity.
• 2. Reflecting Telescopes (1668-1800)
  1668: Sir Isaac Newton invents the first practical reflecting telescope, using a concave primary mirror instead of lenses to gather light, eliminating chromatic aberration.
  1721: John Hadley improves Newton's design, creating a more effective parabolic mirror, leading to greater accuracy in astronomical observations.
  1789: William Herschel builds a massive 40-foot telescope with a 48-inch mirror, allowing him to discover Uranus and deep-sky objects.
• 3. Advancements in Refracting Telescopes (1800-1900)
  1824: Joseph von Fraunhofer designs the achromatic doublet lens, significantly reducing chromatic aberration and improving image quality.
  1887: The 36-inch refractor at the Lick Observatory becomes the largest refracting telescope of its time, contributing to numerous discoveries in stellar spectroscopy and nebulae.
• 4. Modern Reflecting Telescopes (1900-1950)
  1917: The Hooker Telescope at Mount Wilson Observatory, with a 100-inch mirror, becomes the largest telescope in the world, enabling Edwin Hubble to discover the expanding universe.
  1948: The Hale Telescope at Palomar Observatory, with a 200-inch mirror, remains one of the most powerful optical telescopes for decades, contributing to many advances in astrophysics.
• 5. Radio Telescopes (1930-Present)
  1937: Grote Reber builds the first dedicated radio telescope, leading to the birth of radio astronomy.
  1963: The Arecibo Observatory, with a 305-meter dish, becomes a key instrument in radio astronomy, studying everything from planets to pulsars.
  2000: The Very Large Array (VLA) in New Mexico, consisting of 27 radio antennas, provides high-resolution imaging of radio sources in the universe.
• 6. Space Telescopes (1990-Present)
  1990: The Hubble Space Telescope is launched, providing unprecedented views of the universe free from atmospheric distortion, revolutionizing our understanding of space.
  2009: The Kepler Space Telescope begins its mission to discover Earth-like exoplanets, identifying thousands of exoplanet candidates.
  2021: The James Webb Space Telescope (JWST) is launched, offering even greater resolution and sensitivity in infrared wavelengths, poised to make groundbreaking discoveries about the early universe, exoplanets, and more.
• 7. Modern Innovations and Large-Scale Observatories (2000-Present)
  2005: The Large Binocular Telescope (LBT) in Arizona features two 8.4-meter mirrors, providing high-resolution images and spectroscopy.
  2022: The European Extremely Large Telescope (E-ELT), under construction, will have a 39.3-meter primary mirror, making it the largest optical/near-infrared telescope in the world.
  Ongoing: The Square Kilometre Array (SKA), a massive radio telescope project in development, aims to be the largest and most sensitive radio telescope array, with antennas spread across multiple continents.