Last year, I took a number of vacations which involved cruising, diving, snorkelling and walking on glaciers. Thinking back on those trips, I could not help but notice that water and ice exhibited different colours in different settings. I decided to dive deeper into the colours of water. Finally, here are my findings. Water’s True Colour The colour of an object mainly depends on the colour of light emitted from it. In the case of water its colour is also affected by factors like light source, absorption, scattering, and suspended materials. Absorption by water is stronger for red light, but weaker for blue light. Water is therefore, intrinsically blue. However, this effect is only apparent when the water is reasonably deep. This is why a glass of water appears colourless whereas a big aquarium looks bluish through the thickness of water. Why is the Sea Blue? I did two cruises last year, one in the Caribbean and the other in the South Pacific. Owing to the depth of the wate...
I am not usually a fan of biographies. The narcissist in me says there is no one better to learn from but myself. I have always hold in admiration for Jeff Bezos however, having interned for Amazon.com during my university years. Invent and Wander , written by the man himself, is a great summary of Bezos' philosophies on running his businesses -- namely Amazon, but also The Washington Post and Blue Origin. In particular, a few points caught my eye: Go long: Amazon.com is focused on the long term, and I mean really long term. Bezos even raised the eyebrows of his shareholders on numerous occasions by sacrificing short term profits for what he believed to be worthy long term investments (Marketplace, AWS, Amazon Prime) Focus on customers: F ocus on customers' needs, sometimes even before they know it. If you are obsessed with your customers instead of your competition, you will innovate much more. This was how volunta...
Ever wonder how fresh water is processed and delivered effortlessly into your home? Well for starters, it is not effortless! And, it is definitely not easy. Hong Kong's Water Supply Department (WSD) H2OPE Centre tells it all. It is yet another hidden gem that brings a great wealth of knowledge and interactive fun to your family. If you are visiting the city with young ones, and have a half-day of free time, this is the place to be. The centre covers all key topics one has to know about water. From collection, treatment, distribution, to conservation, you can readily choose content to skim through or deep dive into. Many displays combine visual/audio elements, along with interactive games that captivate your attention, and provide an amusing experience for children. Depending on your interest level, you can spend easily between 1 to 3 hours in the cosy facility. My favourite fun-fact takeaway was that Zebrafish is us...
Comments
Post a Comment