Question: Improved aircraft designs were in the offing with the Bristol Beaufighter, then under development. It would prove formidable, but its development was slow. The Beaufighter had a maximum speed of 320 mph (510 km/h), an operational ceiling of 26,000 ft (7,900 m) and a climb rate of 2,500 ft (760 m) per minute. Its armament of four 20 mm (0.79 in) Hispano cannon and six .303 in Browning machine guns offered a serious threat to German bombers. On 19 November, John Cunningham of No. 604 Squadron RAF shot down a bomber flying an AI-equipped Beaufighter. It was the first air victory for the airborne radar.
Try to answer this question if possible: What is the operational ceiling of the Beaufighter?
Answer: 26,000 ft (7,900 m)
Question: IR data transmission is also employed in short-range communication among computer peripherals and personal digital assistants. These devices usually conform to standards published by IrDA, the Infrared Data Association. Remote controls and IrDA devices use infrared light-emitting diodes (LEDs) to emit infrared radiation that is focused by a plastic lens into a narrow beam. The beam is modulated, i.e. switched on and off, to encode the data. The receiver uses a silicon photodiode to convert the infrared radiation to an electric current. It responds only to the rapidly pulsing signal created by the transmitter, and filters out slowly changing infrared radiation from ambient light. Infrared communications are useful for indoor use in areas of high population density. IR does not penetrate walls and so does not interfere with other devices in adjoining rooms. Infrared is the most common way for remote controls to command appliances. Infrared remote control protocols like RC-5, SIRC, are used to communicate with infrared.
Try to answer this question if possible: What device changes infrared radiation to standards published by the Ir DA?
Answer: unanswerable
Question: In the face of the country being re-occupied by the Red Army, tens of thousands of Estonians (including a majority of the education, culture, science, political and social specialists) chose to either retreat with the Germans or flee to Finland or Sweden where they sought refuge in other western countries, often by refugee ships such as the SS Walnut. On 12 January 1949, the Soviet Council of Ministers issued a decree "on the expulsion and deportation" from Baltic states of "all kulaks and their families, the families of bandits and nationalists", and others.
Try to answer this question if possible: What was the name of the refugee ship that Estonians boarded?
Answer: the SS Walnut
Question: This new approach liberated scientific speculation from the dogmatic restraints of Aristotelian science, and paved the way for new approaches. Particularly within the field of theories of motion great advances were made, when such scholars as Jean Buridan, Nicole Oresme and the Oxford Calculators challenged the work of Aristotle. Buridan developed the theory of impetus as the cause of the motion of projectiles, which was an important step towards the modern concept of inertia. The works of these scholars anticipated the heliocentric worldview of Nicolaus Copernicus.
Try to answer this question if possible: Which scholars made great advances in the theories of motion?
Answer:
Jean Buridan, Nicole Oresme and the Oxford Calculators