- Quelle coquinerie!
- Transparent: free of deceit; easily understood; clear to perceive; void of subtlety or deceptiveness; honest & translucent; without any concealment; not employing disguise or camouflage.
- Intransparent: difficult to detect or analyze; utilizing cunning distractions; full of pretense, betrayal & subdiffusion; fallacious & beguiling.
- Proprietary: owned brand / not public domain / licensed usage / protected by intellectual property right
- Polarized light: scattered, indirect, reflected light by for example atmosphere/dust instead of pure from original source
- Blog vs. Wiki = Information vs. Knowledge:
- Blog is normally used to broadcast news or information which is generally time bound & therefore could become irrelevant/superseded. Such information could be one’s view, personal opinion or factual statement which is not expected to be modified by anyone although subscribers might ideally comment on this story or express their value/appreciation of it. Examples include meeting minutes, performance report, sport results, newsletter, product launch or public event announcement where audience feedback is optional. A blog should answer the five Ws:
- What happened?
- Who is involved?
- When did it take place?
- Where did it take place?
- Why did it happen?
- Wiki is normally used to share factual knowledge which is meant to be edited/updated collaboratively & progressively to maintain it current/relevant. Such information is generally time independent and is refined by the team’s on-going experience. Examples include project status, historical event or a static landing page where a group’s contribution is essential.
- The origin of Twitter’s 140-character limit was set so that tweets could fit into SMS messages (which had 160 character limit & needed room for usernames).
- API is an application program interface that provides a developer with access at programming-level to other proprietary software. It is an intermediary program that makes it possible for different applications to interact with each other & share data & thrive with functionalities. This technology enables websites to interact with each other by using other web technologies & allowing collaboration. So websites can interconnect in a more fluid, user-friendly manner.
- Logarithms can make multiplication and division of large numbers easy because adding logarithms is the same as multiplying, and subtracting logarithms is the same as dividing.
- if x = by, then y = logb(x)
- n factorial is the number of ways to arrange n objects e.g.
- Q: how many different ways can you position 3 coins in a row?
- Q: how many different ways can 7 students sit on 7 chairs?
- A: 7! = 5040 possibilities
- Notable rules:
- 0! = 1! = 1
- (n-1)! = n!/n (thus 4!=5!/5 )
- Fact: 1 L = 0.001 m³ and 1 kg/m³ = 1 grams/litre (g/L)
- One liter of water weighs 970 grams: so ρ= 970 kg/m³.
- One liter of milk (Frische fettarme Milch 1,5% Fett, länger haltbar) weighs 1023 grams: so ρ= 1023 kg/m³.
- One liter of orange juice weighs 1039 grams: so ρ= 1039 kg/m³.
