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0831 Question

1. How Roast Duck Made

1.1. Beijing

  • Glazing: malt sugar or honey, contribute to the crispy, shiny skin
  • Seasoning: five spice powder
  • Roasting: two step, air drying
    • higher one initially for crisping
    • lower one to cook through

1.2. Pork Belly

Drying is the essential step

  • in the fridge, uncovered, overnight

1.3. Guangdong vs. Beijing

  • Flavor: G more complex
  • Skin: G less crispy
  • Serving: chopped

Comfort: extremely comfortable

Versatility: suitable for exercise, lounging, outings

Affordability: broad range of consumers

Body Positivity: suitable for every shape

3. Why hair oily

Produced by sebaceous glands

  • Protect UV, wind and temp change
  • Moisture Retention
  • Oily hair appear as healthy signal
  • Reduce friction

4. How is Macha Powder Made

Process: steaming, drying, de-stemming, stone grinding

Dried tea leave has higher profit margin per unit

Macha powder sell at much higher price point

5. NFC and RFID

5.1. RFID: Radio-Frequency Identification

two components

  • Tags: passive or active
  • Readers: usually connected to computer system

5.2. NFC: Near Field Communication

subset of RFID, designed for close range usually within 4 cm or less

Diff:

  • RFID could generally work on meters range
  • NFC simpler and more consumer-oriented
  • RFID usually used for tracking item, while NFC used for contactless payments

6. How Baseball Pitcher Get the ball move in curve

Player:

  • Grip the ball with middle finger
  • Release: impart a spin by pulling down the fingers
  • Wrist and Finger Action: snap the wrist

Science:

  • Magnus Effect
  • Spin rate
  • Seams

6.1. S shape?

Very rare, in most time, the S shape is just a human eye error or view angle cause

  • Change in seam orientation
  • Air Resistance and speed change
  • Laminar Flow vs Turbulent Flow

7. Why Stocking Attractive to Men

  • Culture influence
  • Aesthetic appeal: smoothing effect
  • Mystery and imagination: leave something to the imagination
  • Psychological Factors: specific experience, fetish

7.1. Fetish

A form of sexual desire linked to a particular object

  • object
  • body part
  • behavior
  • situation

Origin?

  • From early sexual experience
  • Symbolism
  • Taboo
  • Sensory

7.2. Kink

Enhancement to an already satisfying sexual relationship

7.3. Etymology

Kink: in 17th century, referred to a twist or bend in a rope

Fetish: from Portuguese word ‘feitico’ means charm or sorcery

8. Fly Camera DJI