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Focus sheet (Music app (Fails & Lessons (Bad question, Starting with…

- - - - Mars
        
        Weather on Mars
        
        Data
        
        Atmospheric opacity: Sunny
        
        Temperature
        
        Low -80C/-112F
        
        High -22C/-7F
        
        Ground/air
        
        Pressure at 7.63 hPa
        
        Daylight 05:45-17:29
        
        UV Radiation: high (sometimes very high)
        
        Wind
        
        Sol 1937 (Jan 17, 2018)
        
        Relative humidity
        
        Hemispheres
        
        Southern
        
        Summer
        
        Warm
        
        4 months (not long)
        
        Solstice
        
        Winter
        
        Cold
        
        6 months
        
        Solstice
        
        Spring
        
        5.3 months
        
        Dust storms
        
        Equinox
        
        Autumn
        
        7 months
        
        Equinox
        
        Northern
        
        Winter
        
        Temperature is normal
        
        Above 4 months (not long)
        
        Solstice
        
        Summer
        
        6 months
        
        Cold
        
        Solstice
        
        Spring
        
        7 months
        
        Dust storms
        
        Equinox
        
        Autumn
        
        5.3 months
        
        Equinox
        
        Climatic zone
        
        Tropical (latitude ±25°)
        
        Two temperate climates
        
        Two polar circles (latitude ±65°)
        
        General information
        
        Sun Distance: 142 million miles
        
        Speed: 14.5 miles per second
        
        Diameter: 4220 miles (1/2 Earth)
        
        Tilt of axis: 25°
        
        Year length: 687 Earth Days (1.9 years)
        
        Day (sol) length: 24 hours 37 minutes
        
        Gravity: 0.375 that of Earth
        
        Temperature
        
        Average -62°C
        
        Hottest at equator +20°
        
        Coolest at the pole -153°C
        
        Atmosphere
        
        Contents: mostly carbon dioxide (98%), some water vapor, ammonia, methane
        
        Thin (100 times thinner than Earth's)
        
        Carbon dioxide cycle: c.d. evaporate and enter the atmosphere in the summer, then the wind put the c.d. to opposite hemisphere
        
        Methane founts: 270 tons per year, 3-4 years in atmosphere
        
        Moons
        
        Phobos: 13.8 miles
        
        Deimos: 7.8 miles
        
        4th planet from the Sun
        
        Weight: 642 sextillion kg (1/10 Earth)
        
        2nd smallest in the Solar System
        
        Surface
        
        Features
        
        Craters
        
        Volcanoes
        
        Probably their activities
        
        1 more item...
        
        Valleys
        
        Deserts
        
        Polar ice caps
        
        Contents: iron dioxide prevalent
        
        Name
        
        Often called "Red Planet"
        
        Origin
        
        Possibly related to Latin mas "male" (genitive maris)
        
        The god of war in Roman mythology
        
        Roman Mars is often equated with the Greek god Ares
        
        Mars rode on a chariot pulled by two horses
        
        Phobos (fear)
        
        Deimos (panic)
        
        How to get water?
        
        About time on Mars
      - Space trips
        
        To Mars
        
        Launch window
        
        Closest approach to Earth
        
        Every 1.6 years (26 months)
        
        Travel time
        
        260 days now
        
        130 days — high speed transfer orbits
        
        Depends on the velocity
        
        During that time
        
        Mars travels 3/8 of it's orbit
        
        Distance
        
        Straight line
        
        56 million km
        
        400 million km
        
        Travel orbit
      - Competitive analisys
        
        Weather apps
        
        Sol
        
        NASA International Space Apps Challenge winner (Best use of data)
        
        Relatively good UI
        
        Shows weather on Earth too
        
        Mars weather app
        
        Mars weather widget
        
        :heavy_check_mark: REMS Mars weather
        
        Very detailed reports with graphs and current data
        
        :heavy_check_mark: Mars weather report
        
        Mars weather watchover
        
        :heavy_check_mark: REMS official site
        
        Mars Weather Twitter
    - - People
        
        Foreign
        
        https://twitter.com/Astro_Jessica
        
        https://twitter.com/AstroAnnimal
        
        https://twitter.com/astro_kimbrough
        
        https://twitter.com/Thom_astro
        
        https://twitter.com/Astro_Christina
        
        https://twitter.com/AstroPeggy
        
        https://twitter.com/Astro2fish
        
        https://twitter.com/VicGlover
        
        https://twitter.com/Astro_Jeanette
        
        https://twitter.com/AstroTerry
        
        https://twitter.com/Astro_Maker
        
        https://www.facebook.com/sdtingle
        
        https://www.facebook.com/astroterryvirts?ref=br_rs
        
        https://www.facebook.com/jeanette.epps.35?lst=100020335658577%3A100013093872763%3A1516514636
        
        https://www.facebook.com/jessica.meir.96/about?lst=100020335658577%3A1015893467%3A1516515691
        
        https://www.facebook.com/anne.mcclain.925?lst=100020335658577%3A688475093%3A1516516325
        ???
        
        https://www.facebook.com/profile.php?id=100014123893378&ref=br_rs
        
        https://www.facebook.com/mtvandehei?ref=br_rs
        
        https://www.facebook.com/alo.philipaniwetane?ref=br_rs
        
        https://www.facebook.com/dorothy.metcalflindenburger
        
        https://www.facebook.com/AstroDavidS/
        
        https://www.facebook.com/AstroJeremy/
        
        https://www.facebook.com/scottparazynski/?ref=br_rs
        
        Russian
        
        https://twitter.com/Anton_Astrey
        
        https://twitter.com/OlegMKS
        
        https://twitter.com/Msuraev
        
        https://www.facebook.com/sergeyiss/
        
        link to www.facebook.com
        
        https://www.facebook.com/anton.shkaplerov
        
        Александр Александрович Мисуркин
      - Questions
        
        What should be in Mars's weather app?
        
        Imagine a dream weather app. How does it look? Color, images? What do you see at first?
        
        Associations with Red Planet?
        
        How do you see the future of Mars exploration and tourism?
        
        What do you feel about space exploration?
        
        What do you feel about going to Mars?
        
        How will the trip be?
        
        How do you think people will travel to Mars in the future?
        
        Do you want to live on Mars? Why?
        
        What do you think it feels like to travel to Mars?
        
        If you are a Mars tourist, how would you prepare?
        
        What's the most important thing you should know when travelling to Mars?
        
        What's the most important thing you should take with you when travelling to Mars?
        
        A flight to Mars would be long. How to not get bored?
        
        What do you think about if you have free time?
        
        What will future Mars tourists care about the most?
        
        Do you want to travel to Mars?
      - Research goal
        
        Get to know how they feel during space travel
        
        Find out what problems people may face during travel
        
        Get to know what do we should focus on (colors, emotion, features)
  - - - Earth
        
        11 am
        
        Rain
        
        1 pm
        
        Cloudy
        
        3 pm
        
        Sunny
        
        8pm
        
        Clear
        
        10
        
        Clear
        
        12 am
        
        Partly cloudy/ Cloudy
        
        2 am
        
        Thunderstorm
        
        Tomorrow
        
        4 am
        
        Clear
        
        5 am
        
        Clear/Sunny
        
        Cloudy
        
        9 am
      - Mars
        
        Clear
        
        Clear
        
        Storm
    - - Slowly moving shapes in zero gravity
      - Soft noise
      - Yellow background here should be replaced.
      - Size: 564 x 1002 or 608 x 1080
  - - - Weather types
      - Location names
        
        Darwinhill
        
        Rubinwill
        
        Cooperstown (real name of something on Mars)
        
        Research real places on Mars
        
        The name should be short
        
        Shouldn't be large (it's hard to predict weather in 4000km range)
        
        Good for humans living
        
        Naukluft
        
        Rocknest
        
        Pahrump
        
        Edgecliff
        
        https://twitter.com/MarsCuriosity/status/958426390868578304
        
        May be funny
        
        Shaler
- - - - Components
        
        Digital
        
        Decade counter
        
        LCD screen, LED panel, individual LEDs/strips
        
        Quartz oscillator
      - 18.02.2018
      - Existing projects
        
        Quartz clock
        
        Reverse clock 1
        
        Reverse clock 2
      - Remake existing clocks or create ones by ourselves?
      - How do clocks work?
        
        DIY examples
        
        Big digital clock on esp8266 video
        
        LED segmented clock video
        
        Arduino Nano
        
        Clock module DS3231
        
        Code and scheme
        
        How digital clock works short video
        
        DIY clock kit assembly video
        
        Easy addressable LEDs with Arduino
        
        Digital clocks
        
        High-level view
        
        Components
        
        How electronic gates work?
        
        How does quartz crystal oscillator work?
        
        Answers
  - - - Questions
        
        Как спросить о времени?
        
        Как рассказать?
        
        Где используется время?
        
        Что оно значит в нашей жизни?
        
        Для чего оно используется?
    - - Questions
        
        Как изменятся законы языка, коммуникации и времени?
        
        Что переворачиваем наоборот?
    - - Узнать, как используется время.
      - 2.1. Использовать это для того, чтобы придумать, как повернуть время вспять с минимальными сложностями для людей.
      - 2.2. Составить на основе пункта 1 план того, как будет использоваться новое время.
      - 2.0. Какие компоненты времени будут идти назад? Что еще изменится?
  - - - Challenges
        
        Chronology goes backwards.
        
        Conversion between dates in the new and old time
        
        Conversions between other time standards
        
        How will timers work?
        
        Transition to the new system
        
        Years back — history repeats?
      - Consequences
        
        Positive
        
        "Right" feeling of time
        
        Our time is expiring
        
        Time is not endless
        
        Motivation
        
        Negative
        
        Depression
        
        Worldwide confusion
        
        Problem with the past
        
        Transition to a new time
    - - All people in the world who use time
    - - Time
        
        Units
        
        Second
        
        Minute
        
        Hour
        
        Smaller...
        
        Questions, ideas
        
        Format and sorting?
        
        ss:mm:hh?
        
        12 hour clock
        
        Will it work?
        
        How?
        
        Will time zones change?
        
        Analog clock
        
        Dial will change?
        
        They will go counterclockwise?
        
        When will day start?
        
        If it changes — it may have negative effects
        
        Linguistics
        
        "5 to 10" would mean 10:05;
        in five minutes it will be 10:00
        
        "5 past 10" would mean 9:55;
        may be undesirable
        
        How would people say time in a short way?
      - Date
        
        Year
        
        2018 + 1*n
        
        Time is going on
        
        Years don't repeat
        
        Numbers are infinate
        
        No problem with repeating years, no new designations
        
        2018 - 1*n
        
        Years start to repeat
        
        Problems with conversion between new and old years
        
        How will we count years?
        
        New symbol system?
        
        For instance, people use B.C. / A.D. to label or number years.
        
        Years aren't endless. Will we use minus where 2018 years end?
        
        Linear
        
        Century + year (XI18)
        
        Month
        
        Textual names
        
        Does it make sense?
        
        Maybe, it doesn't make sense, because we can't count text. We don't associate text with numbers. Text can exist without numbers.
        
        If we change it people may have problems with old and new names.
        
        Numeric
        
        Does it change anything?
        
        Cyclical
        
        Will calendar change?
        
        Fixed or Gregorian calendar?
        
        Day of the month
        
        Howto say the date?
        
        How people use days of the month?
      - Day of the week
      - Century
        
        Why should we change it?
        
        Does it make sense?
        
        Linear
      - Millenium
      - Week of the year
    - - –, Minus
      - emit
      - Reverse Universal Time
  - - - Year
        
        Calendar
        
        Leap years
        
        366 days long
        
        Skipped every 400 years
        
        365.2425 mean solar days long (Gregorian calendar)
        
        Used to count people's age
        
        Other
        
        Academical
        
        Fiscal
        
        Seasonal
        
        4-5-5 calendar
        
        Astronomical
        
        Orbital period of any planet
        
        Sidereal year
        
        Tropical year
        
        Anomalistic year
        
        Lunar
        
        Full moon cycle
        
        Lunar year
        
        "Greater"
        
        Equinoctial cycle
        
        Galactic year
        
        Counting
        
        Elapsed
        
        Completed years since the epoch
        
        Current
        
        Count begins at the epoch
        
        Linear
      - Month
        
        Duration
        
        Fixed — 28 days
        
        Gregorian calendar — 28-31 days
        
        1/12 of a year
        
        Astronomical months
      - Day
        
        Calendar day
        
        Day of the week
        
        Named after planets
        
        Work/weekend
        
        Day of the month
        
        Numerical identification
        
        Daylight time
        
        Boundaries
        
        Sunrise
        
        Sunrise equation
        
        cos ω₀ = -tan ɸ × tan δ
        
        3 more items...
        
        Sunset
        
        Movement
        
        Sun path chart
        
        Length of the day
        
        Mean solar day
        
        Caused by Earth's inclined axis
        
        24h±7.9s
        
        Stellar day
        
        23 hours 56 minutes and 4.1 seconds
        
        Earth's rotation relative to a distant star
      - Minute
        
        Rarely has 61 seconds (leap)
        
        Unit of time and angle
      - Second
        
        SI base unit
        
        Hertz (Hz) — one cycle per second
        
        1/86400 of a day
        
        About the heartbeat frequency
        
        Leap second syncs time with slowing Earth's rotation
        
        The duration of 9 192 631 770 periods of the radiation corresponding to the transition between two hyperfine levels of the ground state of the caesium 133 atom (cycles of the radiation that gets an atom to vibrate between two energy states).
      - Hour
        
        3600 seconds
        
        Counting
        
        Start
        
        Midnight :night_with_stars:
        
        Done with modern clock
        
        Difficult to measure
        
        Dawn :city_sunrise:
        
        12 hours
        
        Noon — 6
        
        Sunset — 12
        
        Sunrise — 0 or -6
        
        Sufficient light — daily routines begin
        
        Sunset :city_sunset:
        
        24 hours
        
        0 — sunset
        
        14 — sunrise
        
        19 — noon
        
        Shows time left to finish daily routines
        
        Noon :sunny:
        
        Easiest to measure
        
        Was used by astronomers
        
        Julian Date system
        
        Julian Day begins at noon
        
        Date doesn't change during a single night's observing
        
        Visual-sign-based
        
        Not accurate
        
        Location-dependent
        
        Local custom dependent
        
        Seasonally unequal
        
        Midnight vs. Dawn start
        
        Midnight
        
        Keeps sunrise and sunset floating while midnight and noon fixed
        
        Distributes day length variation — easy biological clock adaptation
        
        Date changes when most people are asleep
        
        Easy timezones — noon aligns with longitude
        
        Facilitates New Year's and midnight birthday parties
        
        Dawn
        
        Day begins with a significant visual concept
        
        Biological time perception = real time
        
        No daylight saving time and other confusions
        
        No need to adjust to different sun on wake up
        
        1/24 of a day
      - Smaller units
        
        Millisecond (thousandth)
        
        Tenth of a second
        
        Hundredths of a second
        
        Microsecond (millionth)
        
        Nanosecond (billionth)
      - Century
        
        Ordinal numbering
        
        Strict / popular culture (general) usage
        
        100 years
        
        Naming
        
        Roman numerals
        
        Even multiples of 100
        
        1900–1999 — the nineteen hundreds
      - Millennium
        
        1000 years
        
        Counting viewpoints
        
        x000 or x001
      - Week
        
        Duration
        
        7 days
        
        8 days
        
        Decimal calendar week
        
        First day
        
        Sunday
        
        Monday
        
        Other
        
        1 calendar year is 52 weeks and 1 day
        
        Workweek
        
        Counted in hours as well as days (about 40)
        
        4-6 days
    - - International atomic time
        
        GMT
        
        UT
        
        UTC
        
        Leap second
        
        Time zones
        
        UT1
        
        UT0
        
        UT1R
        
        UT2
      - Swatch Internet time
      - Terrestrial time
      - Barycentric Dynamical time
      - Conventions
        
        12-hour
        
        24-hour (military time)
        
        Decimal
        
        Metric time
        
        Hexademical
        
        Special cases
        
        25-hour, 28-hour and other time systems
        
        TV programmes
        
        Public transport schedules
        
        6-hour
      - Coordinated Mars time
    - - Instant
      - Time interval
      - Date
      - Duration
    - - Watch / Clock
        
        Displaying
        
        Analog
        
        Digital
        
        Hybrid
        
        Auditory
        
        Word
        
        Projection
        
        Tactile
        
        Notable makers
        
        Raketa
        
        Movado
        
        Rolex
        
        Swatch
        
        Measuring
        
        Mechanical other
        
        Electric
        
        Atomic
        
        Spring-driven
        
        Pendulum
        
        Hairspring
        
        Qartz
        
        Optical
      - Computers
      - Interval
        
        Stopwatch
        
        Sporting event clocks
        
        Timer
        
        Sand clock
      - Calendar
        
        Perpetual calendar
        
        Day of the week determination
        
        Mathematical
        
        Gauss's algorithm
        
        Zeller's algorithm
        
        Corresponding units
        
        Years
        
        Centuries
        
        Months
        
        Days
        
        Tabular methods
        
        Dominical letter
        
        Schwerdtfeger's method
        
        Lewis Carroll's method
        
        Doomsday rule
        
        Systems
        
        Solar
        
        Modern
        
        Hebrew
        
        Islamic
        
        Hindu
        
        Zoroastrian
        
        Julian
        
        Gregorian
        
        Simplified
        
        Reform proposals
        
        International Fixed Calendar
        
        World Calendar
        
        Holocene calendar
        
        World Season calendar
        
        Pax
        
        Symmetry454
        
        Hanke-Henry Permanent Calendar
        
        Lunar
        
        Lunisolar
        
        Rules
        
        Grouping of days into subdivisions
        
        Week
        
        Start
        
        Length
        
        Names of days
        
        Months
        
        Number
        
        Length
        
        Names
        
        Leap and common years
        
        Years
        
        Numbering of years
        
        Selection of the epoch
        
        The issue of year zero
        
        Start of the year
        
        Start of the day time
        
        Special days and periods (such as leap day or intercalary day)
        
        Alignment with cycles
        
        Social
        
        Astronomical
        
        Biological
        
        Literal notation of dates
      - Timestamp
        
        Dual dating (in transition from one calendar to another)
    - - Digital
        
        Format
        
        Time
        
        p.m. / a.m. (in 12-hour time)
        
        hh:mm:ss
        
        Date
        
        Common standards
        
        YMD (big-endian)
        
        DMY (little-endian)
        
        MDY
        
        YDM
        
        Day
        
        DD
        
        D
        
        DDD (in day and year only format)
        
        -th (-st, -nd, -rd)
        
        Month
        
        MM
        
        M
        
        Jan (special: Sept, May, June)
        
        January
        
        Year
        
        YY
        
        YYYY
        
        Separators
        
        /
        
        -
        
        .
        
        Examples
        
        23.12.2017 06:24 UTC
        
        Sat Jul 23 02:16:57 2018
        
        Other
        
        Day of the week
        
        Monday
        
        Mon
        
        1
        
        Week in a year
        
        w21
        
        w21-2 (Tuesday)
        
        Time zone
        
        A.D. / B.C.
        
        Computing
        
        Unix time
        
        From 01.01.1970, 00:00:00
        
        Seconds elapsed
        
        1 000 000 000 =
        9 September 2001 01:46:40 UT
        
        Year 2038 problem
        
        System time
        
        Synchronisation protocols
        
        Network Time Protocol
        
        Ported to almost every computing platform
        
        Synchronises participating computers to within a few milliseconds of UTC
        
        Precision Time Protocol
        
        On a local area network, it achieves clock accuracy in the sub-microsecond range
        
        Timestamp
        
        Digitally signed timestamp
        
        Unchangeable, even by the owner
        
        Timestamp creation and checking are algorithmical
        
        Could be replaced with blockchain technology
        
        File timestamps
        
        Year 10000 problem (Y10K, deca-millenium bug)
        
        Sorting
        
        Lexicographical order = chronological order
        
        Big-endian
        
        YYYY-MM-DD or YYYY-DDD
        
        ISO 8601, RFC 3339
      - Analog
        
        Clock dial
        
        1, 4, 12, 24, 60 or other number of ticks
        
        Numbers
        
        1-12
        
        12, 3, 6, 9
        
        Often none at all
        
        Clock hands
        
        Minute
        
        60 revolutions per hour
        
        Thin and long
        
        Hour
        
        One revolution per 12 hours
        
        Thick and short
        
        Two revolutions per day
        
        Second
        
        Longer and thinner
        
        60 revolutions per minute
        
        Clockwise rotation
        
        Clock position
        
        Relative position
        
        Angle or direction
        
        Usage
        
        Astronomy: hour angle
        
        24h = 360°
        
        Aviation
        
        Add low or high for vertical
        
        Generally horizontal
        
        Examples
        
        12 o'clock — ahead or above
        
        3 o'clock — right
        
        Rotation direction
        
        Clockwise
        
        Counterclockwise
        
        Sexagesimal system
        
        60 — superior highly composite number
        
        Usage
        
        Time
        
        Angles
        
        Geographic coordinates
      - Verbal
        
        Telling current time in English
        
        five past/until/after six (6:05) — [x:01, x:30]
        
        Values
        
        Exact
        
        Half
        
        Quarter
        
        five to/of seven (6:55) — [x:31, x:59]
        
        six o'clock (6:00)
        
        Time of day
        
        Noon (12:00 pm)
        
        Midnight (12:00 am)
        
        Midday (11:00 am — 2:00 pm)
        
        Afternoon (12:00 pm — around 6:00 pm usually)
        
        Sunrise and sunset
        
        Night
        
        Usage: <hour> in the <period>
        
        After dark (9:00 pm -- 1:00 am)
        
        The crack of dawn (4:00 am -- 6:00 am)
        
        Evening
        
        Morning
        
        Day
        
        Nighttime problem
        
        Friday night — night between Friday and Saturday
        
        "today", "tomorrow", "yesterday" — confusing during that time
        
        five thirty seven (5:37)
        
        "five oh seven" (5:07)
        
        Approximations & refinements
        
        almost
        
        exactly
        
        just gone
        
        couple
        
        a few
        
        later
        
        earlier
        
        nine seventeen pm (9:17 pm)
        
        0900/1300 etc hours
        (13 hundred hours)
        
        it is six (6:00)
        
        Asking the time in English
        
        What time is it?
        
        Dates in English
        
        Format problem
        
        March fourth (US)
        
        The third of April
        
        03.04.2018
        
        Solution
        
        April 3, 2018
        
        4th April 2018
        
        Year
        
        Before 2000
        
        Nineteen eighty two (1982)
        
        2000-2010
        
        Two thousand six (2006)
        
        After 2010
        
        Twenty twenty one (2021)
        
        Two thousand twenty one
        
        Asking
        
        Day of the week
        
        What day is it today?
        
        Date
        
        What date is it?
        
        What is the date (today)?
        
        What is today's date?
        
        Answering
        
        It's the 21th.
        
        It's 12th April.
        
        It's May 10th.
        
        It's Monday.
        
        It's = The date is = Today is
        
        Prepositions
        
        on
        
        days
        
        dates
        
        in
        
        month
        
        years
        
        decades
        
        at
        
        particular occasions like 'Christmas'
        
        Talking about clock in English
        
        Fast / Slow
        
        Forward (put watch forward)
        
        Ahead
        
        Stroke
- - - - Feature request form
      - Pages
        
        Facebook Design
- - - - Design thinking lab
      - AD (and UX of ML) research and development
      - Build startups (find problems and solve them)
      - AI research and development
      - UX design lab
      - Be design celebrities
  - - - Likes
        
        Science
        
        Physics
        
        Chemestry
        
        Biology
        
        All technology
        
        Phyhology
        
        Philosophy
        
        Sex
      - Knows
        
        Business
        
        Programming
      - Does
        
        Design
        
        Games (learning now)
        
        AI (learn now)
        
        Drawing
        
        Learn languages
    - - Does
        
        Design
        
        Code
        
        Yoga
        
        Sex
      - Knows
        
        AI
        
        Photography
        
        Biking
        
        Entrepreneurship
        
        Basic animation and video editing
      - Likes
        
        Psychology
        
        Graphic arts
        
        Video graphics and motion design
- - - - Likes helping others
      - Excited about the future
      - Hacker
- - - - Leave from here
      - 30.06.18