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humbleness    
n. 谦逊,卑贱,粗鄙

谦逊,卑贱,粗鄙

humbleness
n 1: the state of being humble and unimportant [synonym:
{humbleness}, {unimportance}, {obscureness}, {lowliness}]
2: a humble feeling; "he was filled with humility at the sight
of the Pope" [synonym: {humility}, {humbleness}] [ant: {pride},
{pridefulness}]
3: a disposition to be humble; a lack of false pride; "not
everyone regards humility as a virtue" [synonym: {humility},
{humbleness}] [ant: {conceit}, {conceitedness}, {vanity}]

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  • What was Apollo 11s reentry speed at parachute deployment?
    The normal entry region for drogue chute deployment by barometric switch (such as was the case with Apollo 11) is described at altitudes between 25,000 and 20,000 feet (7 6 - 6 1 km) and CM velocity between mach 0 225 and 0 475 that come out at roughly 70 65 - 147 25 m s (158 - 329 mi h or 254 - 530 km h)
  • What are reentry speeds of space vehicles?
    More specifically, for Soyuz reentry see What is the maximum velocity at which Soyuz TMA-M may transit through Earth' atmosphere at reentry without a heat-shield? And for Apollo missions see Apollo by the numbers - Entry, Splashdown, and Recovery (table of contents here) Apollo 10 had the fastest maximum entry velocity at 36,397 ft s (11 094
  • Orion re-entry velocity: Why is it higher than Apollo?
    The premise of the question is questionable According to Apollo By The Numbers, the maximum reentry velocity among all Apollo missions was achieved by Apollo 10, which peaked at 36397 ft sec For all missions, the reentry velocity was just above 36000 ft sec or 24545 mph This NASA page says that Artemis I will re-enter at 24500 mph, but clicking through to the linked Artemis I Reference
  • What are the top temperatures occurring during reentry?
    We all know spacecraft reentry causes extreme heat - plasma, ablator, flaming trail, all that jazz I'd like to know just what level of heat are we dealing with - could someone throw some numbers, like what's the maximum temperature occurring in the air or on the heatshield surface, or in the hottest place during reentry generally?
  • Is it harder to enter an atmosphere perpendicular or at an angle
    The maneuver may also be used to loose speed to get a spacecraft in to an orbit If a spacecraft skips out of the atmosphere again it will come back unless it has enough speed to escape the gravitational field The angle at which a spacecraft approaches a planet is called re-entry flight-path angle, γ, see figure below Flight path angle
  • How does one calculate the flight path angle during re-entry?
    An Apollo capsule and the Space Shuttle had one very significant difference in their re-entry and that was their speeds Space Shuttle was already in low earth orbit so basically any reduction in speed guaranteed a return to the Earth’s surface
  • Minimum reentry velocity ideal for a spacecraft returning to Earth
    Is the idle reentry velocity ideal for a spacecraft returning to Earth? It's unclear what you mean by idle velocity, but there are dramatic tradeoffs to starting a reentry from speeds significantly lower than orbital
  • Can a reentry be done slowly? - Space Exploration Stack Exchange
    The craft would only slowly lose speed so keeping thermal issues small, without falling to lower altitude denser air until the speed is far below orbital speed and normal flight can take over Normally, gliding flight is "balance lift and drag to fly at a descent rate that keeps speed constant"
  • the moon - How did NASA figure out when and where the Apollo capsule . . .
    11 After watching the amazing footage of the Apollo 13 capsule parachuting down on the ocean, I was intrigued by how NASA predicted when and where it would splashdown on the vast ocean's surface with amazing precision
  • Was Apollo 13 radio blackout on reentry longer than expected?
    According to the movie Apollo 13 (1995) the radio blackout on reentry was quite a bit longer than expected Very dramatic, yes, but: Did that really happen, and if so, why was it so much longer





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