10 most difficult discoverers riddles A list of discoverers related questions that are most often answered incorrectly Physics quiz Which European was the first to discover America?Bjarni Herjólfsson. Bjarni was heading to Greenland to visit his father in 986, when he drifted south and found himself near the coast of today Canada. Despite his crew eagerness, he refused to land and only attested the discovery of a land full of trees and hills.very hard 26% Bjarni HerjólfssonBjarni Herjólfsson26%Marco PoloMarco Polo8%Christopher ColumbusChristopher Columbus47%Amerigo VespucciAmerigo Vespucci17%Created by: smyru. Statistics based on 3020 answers in 2 languages »Peru riddles » Who discovered radioactivity?Henri Becquerel. Antoine Henri Becquerel (15 December 1852 – 25 August 1908) was a French physicist, Nobel laureate, and the first person to discover evidence of radioactivity. For work in this field he, along with Marie Skłodowska-Curie and Pierre Curie, received the 1903 Nobel Prize in Physics. The SI unit for radioactivity, the becquerel (Bq), is named after him.very hard 26% Henri BecquerelHenri Becquerel26%Max PlanckMax Planck9%Ernest RutherfordErnest Rutherford26%Maria Skłodowska-CurieMaria Skłodowska-Curie37%Created by: Tschuka . Statistics based on 421 answers in 3 languages »discoveries riddles » What is the name of the phenomenon of faster freezing of warmer water than colder water?Mpemba effect. The Mpemba effect, is the observation that, in some circumstances, warmer water can freeze faster than colder water. There have been reports of similar phenomena since ancient times, although with insufficient detail for the claims to be replicated.very hard 28% Mpemba effectMpemba effect28%Phenomenon of LeidenfrostPhenomenon of Leidenfrost39%Wulff processWulff process15%Maxwell's vitrificationMaxwell's vitrification17%Created by: Tschuka . Statistics based on 291 answers in 2 languages »physics riddles » Who was the first to navigate the Northwest Passage? (sea route connecting the Atlantic and Pacific Oceans)Roald Amundsen. In a three year journey between 1903 and 1906, Amundsen explored the passage with a crew of no more than six, in the converted 47-ton herring boat Gjøa. Spending winters with ship trapped in ice, he learned from the local Netsilik people about Arctic survival skills that would later prove useful. For example, he learned to use sled dogs and to wear animal skins in lieu of heavy, woolen parkas. Amundsen later led the expeditions to discover the South Pole (1911) and the North Pole (1926).very hard 33% James CookJames Cook23%Vitus BeringVitus Bering28%Roald AmundsenRoald Amundsen33%No one yetNo one yet14%Created by: globalquiz.org. Statistics based on 10969 answers in 5 languages »geography of Canada riddles » Where was John Cabot from? (the discoverer of Newfoundland and Labrador)From Italy. John Cabot (Italian: Giovanni Caboto, Venetian: Zuan Chabotto) was a Venetian navigator and explorer whose 1497 discovery of the coast of North America under the commission of Henry VII of England was the first European exploration of the mainland of North America. very hard 33% from Englandfrom England24%from Francefrom France16%from Italyfrom Italy33%from Irelandfrom Ireland25%Created by: Tschuka . Statistics based on 1915 answers in 2 languages »geographic discoveries riddles » Who invented the mercury-in-glass thermometer?Gabriel Daniel Fahrenheit. Daniel Gabriel Fahrenheit was a German physicist, engineer, and glass blower who is best known for inventing the mercury-in-glass thermometer (1714), and for developing a temperature scale now named after him very hard 34% Galileo GalileiGalileo Galilei23%Anders CelsiusAnders Celsius28%Gabriel Daniel FahrenheitGabriel Daniel Fahrenheit34%William KelvinWilliam Kelvin13%Created by: Paweł Kołodziejczyk. Statistics based on 7637 answers in 5 languages »inventors riddles » What is the name of the James Cook Barque during his first expedition? (discovert of the south-east coast of Australia)The Endeavour. HMS Endeavour was a British Royal Navy research vessel that Lieutenant James Cook commanded on his first voyage of discovery, to Australia and New Zealand, from 1769 to 1771. In April 1770, Endeavour became the first ship to reach the east coast of Australia, when Cook went ashore at what is now known as Botany Bay. Endeavour then sailed north along the Australian coast. very hard 39% The Australia The Australia 13%The ChristineThe Christine25%The EndeavourThe Endeavour39%The Freedom of the SeasThe Freedom of the Seas22%Created by: Tschuka . Statistics based on 1200 answers in 2 languages »sailing riddles » What nationality was Christopher Columbus?Italian. Columbus was born in the Republic of Genoa. His name in Italian is Cristoforo Colombo, his father's name was Domenico, and his brothers were named Bartolomeo, Giovanni Pellegrino and Giacomo.hard 48% ItalianItalian48%SpanishSpanish19%PortuguesePortuguese28%FrenchFrench2%Created by: globalquiz.org. Statistics based on 21073 answers in 2 languages »sailors riddles » What did Isaac Newton discover? The law of universal gravitation. Newton's law of universal gravitation states that a particle attracts every other particle in the universe using a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers. hard 48% The law of universal gravitationThe law of universal gravitation48%The law of universal attractionThe law of universal attraction24%The law of universal dynamicsThe law of universal dynamics26%The law of a universal parableThe law of a universal parable0%Created by: Tschuka . Statistics based on 1934 answers in 2 languages »astronomy riddles » After whom is Queen Maud Land in Antarctica named?Norwegian queen. Queen Maud Land was the first part of Antarctica to be sighted. The name was initially applied in January 1930 to the land discovered by Hjalmar Riiser-Larsen and Finn Lützow-Holm during Norvegia expedition of 1929–30. It was named after the Norwegian Queen Maud of Wales, wife of the then-reigning King Haakon VII.hard 53% Dutch queenDutch queen24%Norwegian queenNorwegian queen53%Russian queenRussian queen3%Mythical queen of the AmazonsMythical queen of the Amazons18%Created by: globalquiz.org. Statistics based on 22653 answers in 2 languages »geographical names riddles » Play physics quiz and see all the questions.