# Repellor vehicles/Shielding/Quiz

Repellor vehicle shielding is an effort, in a lecture format, to describe the components of a repellor vehicle shield, often as applied in the performance of a trip to and from Mars.

This is a witness photo of the 2013 Russian Chelyabinsk meteor event. Credit: Nikita Plekhanov.

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## Quiz

1 Complete the text:

 Match up the radiation mathematics symbol with the radiation phenomena: thermal neutron capture rate - A change in particle diameter - B power law - C Planck constant - D Boltzmann constant - E electrostatic force - F Jeans length - G ${\displaystyle h}$  . ${\displaystyle \lambda _{J}}$  . ${\displaystyle \varphi _{n}}$  . ${\displaystyle F_{q}}$  . ${\displaystyle ax^{k}}$  . ${\displaystyle k_{B}}$ ${\displaystyle C_{D}}$  .

2 Which of the following are associated with electromagnetics?

 angular momentum transfer solar wind protons electrons the baryon neutrino charge neutralization

3 Which of the following are associated with the envelope of the polarization current density?

 emission of electromagnetic radiation from a superluminal charged particle intensity of some components decays as the inverse of the distance from the source non-spherically-decaying sources emission contains very high frequencies not present in the synthesis of the source non-spherically decaying components of the radiation do not violate energy conservation strong electromagnetic fields are compensated by weak fields elsewhere

4 Which of the following may not be able to slow down an object entering the heliosphere at 20 km/s?

 gravity electrostatic repulsion the charge on the surface of the Sun a comparable charge on the incoming object electromagnetics strong forces

5 True or False, For the photosphere to have a net negative charge and interstellar electrons to be streaming into the solar system, the sign of the voltage at the Sun is positive.

 TRUE FALSE

6 Which of the following are phenomena associated with electromagnetic cascades?

 spectral and timing properties of astronomical sources very high-energy γ-rays the way from the source to the Earth soft X-rays redshifts ambient radiation fields inside the γ-ray source source stability protons

7 The equation for the ion current is likely to include which of the following?

 the mass of the electron the number of electrons e to the grain capacitance factor the dust grain radius a 4πr factor

8 Multiple choice, What was the topic of the paper Robert H. Goddard published in 1919 which influenced Herman Oberth and Wernher Von Braun?

 Telstar liquid fueled rockets application of the de Laval Nozzle Vanguard 1 reaching extreme altitudes

9 True or False, A spaceflight above the Earth is more a flight through the interplanetary medium than it is through space.

 TRUE FALSE

10 Multiple choice, What was the name of the first satellite to orbit the Earth?

 Telstar Sputnik Avenger Vanguard 1

11 Yes or No, "Flyings" could vary considerably in complexity and lavishness and could involve an actor or property being either lifted from the stage into the flies above or vice versa.

 Yes No

12 Multiple choice, Spaceflight was first achieved in what year?

 1932 1942 1952 1962

13 Multiple choice, What, if any, is the difference between a launch pad and a spaceport?

 a launchpad can only launch vehicles vertically liquid feuled rockets only a spaceport has a runway for horizontal landings and/or takeoffs Titan IIIC a launchpad is design for reaching extreme altitudes

14 Yes or No, Manned spaceflight on an individual basis has only been achieved with experimental aircraft such as the X-15.

 Yes No

15 Multiple choice, What are some factors that can influence launch windows?

 position of celestial bodies relative to launch site accessibility to liquid oxygen position of orbits relative to launch site local weather funding

16 Yes or No, A repellor vehicle is a vehicle (with human driver or virtual operator) that steers away from obstacles so as to arrive at a destination safely.

 Yes No

17 Complete the text:

 Match up the type of phenomenon with each of the possibilities below: visible tracks such as a star trail - A a cloud - B bubbles - C a grid of uninsulated electric wires - D octagon - E circumpolar trail - F quadrangles . hectare . rotational pole . diameters . polyhedron an arc .

18 Yes or No, A level grade is a slope of 12°.

 Yes No

19 Complete the text:

 The 0.6 m Tortugas Mountain Observatory is used to monitor the temporal changes in the cloud deck and equatorial activity on .

20 True or False, An event that occurred 2280 b2k actually happened at 80 BC.

 TRUE FALSE

21 An astronomical event occurred during the Cambrian, what does that mean?

 students in the India must use Greenwich mean time about 5 x 108 years ago a high-powered robotic telescope was lost on the shuttle Cambrian a student in Xinjiang has an abacus configured to the geologic time scale on-site use of two high-powered telescopes is available trilobites tried to communicate with Earth

22 True or False, A theoretical observatory decides which systems, for example, among virtual stellar systems, should be recognizable, and which not.

 TRUE FALSE

23 True or False, The U.S. Virtual Astronomical Observatory (VAO) goal is to enable new science through efficient integration of distributed multi-temporal data.

 TRUE FALSE

24 Which of the following are temporal observatories in orbit around the Earth?

 Chandra X-ray Observatory Big Bear TRACE Kodaikanal the Hubble Lomnický štít McMath-Pierce SOFIA Rosetta

25 True or False, A canton is used to keep track of femtoseconds.

 TRUE FALSE

26 Pressure is a measure of force per unit

 .

27 True or False, The US Ground-based Electro-Optical Deep Space Surveillance (GEODSS) base at Diego Garcia is located 412 decameters off the coast of southern California.

 TRUE FALSE

28 Which of the following are characteristic of a volume?

 polyhedra globes hectares pyramid pathway furloughs

29 True or False, There is a 101-cm telescope at Bisei Astronomical Observatory.

 TRUE FALSE

30 Which phenomenon are associated with acceleration?

 a region of space where the interstellar medium is blown away by a supernova a bubble decreasing time displacement orbiting rotation

31 True or False, The Sudbury Neutrino Observatory is a 12-meter sphere filled with heavy water surrounded by light detectors located 2 km below the ground in Sudbury, Ontario, Canada.

 TRUE FALSE

32 Complete the text:

 Match up the distance-time phenomena with the image: line of sight - A an origin - B a displacement - C one billion light years - D measuring - E acceleration - F Celestial swiss cheese. . A beautiful galaxy. . An elliptical orbit. . Closer than a route. . It's about the chains. Getting the numbers. .

33 True or False, The Sphinx Observatory is at a location.

 TRUE FALSE

34 Acceleration is directly involved in which of the following astronomies?

 cosmic-ray astronomy infrared astronomy neutrino astronomy proton astronomy ultraviolet astronomy electron astronomy

35 True or False, An observatory is a place.

 TRUE FALSE

36 Which of the following are associated with mas?

 under ice parallax proper motion radial velocity spectral type Hipparcos

37 True or False, Historically, observatories were as simple as having some alignments on astronomical phenomena.

 TRUE FALSE

38 Which of the following are radiation astronomy phenomena associated with velocity?

 emitting neutrinos red shift 26Al undetectable with balloon-borne detectors temporal spectroscopy steady enough emission to be used as a standard for X-ray emission magnitude direction

39 True or False, Free-fall is associated with acceleration.

 TRUE FALSE

40 Using the speed of light a standard length is now used for the?

41 Various radiation observatories occur at different altitudes and geographic locations due to what effect?

 the atmosphere of the Earth the presence of oceans on the Earth locally available carving tools human habitation increases near an astronomical observatory most astronomical objects are observed at night currently dormant volcanoes seldom erupt

42 True or False, The NuSTAR observatory has a 10.14 m instrument focal length for its Wolter I telescopes.

 TRUE FALSE

43 Which of the following are phenomena associated with grid systems?

 geographic coordinates the Royal Observatory in Greenwich French Institut Géographique National (IGN) maps a longitude meridian passing through Paris a local center of civilization altitude

44 Yes or No, An attractor is an object which draws the user or vehicle towards itself such as a planet or an object with a simulated or real gravity.

 Yes No

45 Complete the text:

 Match up the item letter with each of the X-ray angular resolution possibilities below: Rossi X-ray Timing Explorer - A XMM-Newton - B Chandra X-ray Observatory - C Swift - D Astro-rivelatore Gamma ad Imagini Leggero (AGILE) - E Solar Heliospheric Observatory - F Suzaku - G Koronas-Foton - H 2" 3" . ~2' . 1" . 5.9' . 7' . 1" . 0.5" .

46 Yes or No, A repellor pushes a vehicle or the user away from itself, for example, in a direction of motion which extends radially from the center of the repellor.

 Yes No

## Hypotheses

1. Repellor vehicle success may be the same as quiz questions about it.