Technology questions This is a list of recently added questions about technology. Play technology quiz and see all the questions. The closest star to Sun is Proxima Centauri. In which direction we would need to look to see it on the night sky?It is not visible at all. Proxima Centauri is a red dwarf and its average brightness is very low. That is why even though it is closest to Sun, it was discovered not until in 1915.Created by: Inesstars riddles »hard 49% Great BearGreat Bear988SiriusSirius1132CassiopeiaCassiopeia685it is not visible at allit is not visible at all2740 What is the Greek name for amber?Elektron. Words like "electricity" come directly from the name of amber. Already the ancient Greeks noticed that this stone has a certain mysterious property: when rubbed with fur, it begins to attract particles of dust...Created by: Marta_Smolarekgemstones riddles »hard 43% particlonparticlon580elektronelektron2050amberionamberion1276atomiosatomios778 Maria Skłodowska-Curie was committed to her job. Did she have any children?Her daughter was awarded the Nobel Prize. Her first daughter, Irene, decided to follow her mother's life path and received the Nobel Prize in chemistry in 1935. Her second daughter, Eva, a writer and politician, was known as the "First Lady of UNICEF". She was also nominated for the Pulitzer Prize in 1944.Created by: naypaxscientists riddles »hard 57% She didn't want to and thus didn't have children.She didn't want to and thus didn't have children.2107She was sterile as a result of the radiation.She was sterile as a result of the radiation.1690Her daughter was awarded the Nobel Prize.Her daughter was awarded the Nobel Prize.8214Her sole daughter died at the age of 2.Her sole daughter died at the age of 2.2172 Which supercar is not a hybrid vehicle?Bugatti Veyron has a W16 petrol engine (8,0L, 1001KM). The other cars are equipped with both gasoline and electric engines.Created by: Niezgodnacars riddles »hard 51% Ferrari LaFerrariFerrari LaFerrari592Bugatti VeyronBugatti Veyron1679Porsche 918 SpyderPorsche 918 Spyder503McLaren P1McLaren P1495 What is dry ice?Solidified CO2. Dry ice is used in refrigeration. It has an interesting property: it maintains a constant temperature of -78.5C in a warmer environment. This is because dry ice does not melt and sublimes directly into the gaseous form.Created by: Niezgodnaice riddles »very easy 92% glacierglacier329solidified CO2solidified CO29061legendary alchemical substancelegendary alchemical substance232meringue dessertmeringue dessert156 Which car manufacturer puts the ignition switch between seats?Saab started mounting ignition switch next to gearbox in 1969. The objective was to eliminate severe knee injuries during accidents. Created by: Przemekcars riddles »average 60% SaabSaab3377VolvoVolvo606LanciaLancia609LexusLexus1016 Who was the first man to leave the spacecraft in space?Alexey Arkhipovich Leonov was a Soviet astronaut, general major pilot and two-time Hero of the Soviet Union. On 18 March 1965, he became the first human to conduct extra-vehicular activity, exiting the capsule during the Voskhod 2 mission for a 12-minute spacewalk.Created by: Paweł KołodziejczykSoviet Union riddles »hard 42% Neil Alden ArmstrongNeil Alden Armstrong819Edwin Eugene Buzz Aldrin, Jr.Edwin Eugene Buzz Aldrin, Jr.319Alexey Arkhipovich LeonovAlexey Arkhipovich Leonov1708Yuri Alekseyevich GagarinYuri Alekseyevich Gagarin1174 What is the unit of the conductance?1S (siemens). Conductance (conductivity) is the reverse of the resistance. So it is a measure of the susceptibility of the element to the flow of the electric current. Siemens is the unit of electric conductance named after German inventor and industrialist Werner von Siemens, founder of the well known Siemens company.Created by: Paweł Kołodziejczykelectricity riddles »hard 40% 1Ω (ohm)1Ω (ohm)5641S (siemens)1S (siemens)11371H (henry)1H (henry)3761T (tesla)1T (tesla)717 In what temperatures is the superconductivity observed?Very low. Superconductivity is a phenomenon of exactly zero electrical resistance and expulsion of magnetic fields, which occur in certain materials when cooled below a characteristic critical temperature. This quantum phenomenon is impossible to be explained by the classical physics. Created by: Paweł Kołodziejczykphysics riddles »hard 46% very lowvery low1712very highvery high531in every temperaturein every temperature202it depends on the material usedit depends on the material used1239 What does "FM" found on radio receivers stand for?Frequency Modulation. In telecommunications and signal processing, frequency modulation (FM) is the encoding of information in a carrier wave by varying the instantaneous frequency of the wave. Created by: Paweł Kołodziejczykmusic riddles »hard 47% Amplitude ModulationAmplitude Modulation217Frequency ModulationFrequency Modulation2608Fast ModulationFast Modulation1039Microwaves Microwaves 1643 Play technology quiz and see all the questions.