irship or dirigible balloon is a type of aerostat or lighter-than-air aircraft that can navigate through the air under its own power. Aerostats gain their lift from a lifting gas that is less dense than the surrounding air. In early dirigibles, the lifting gas used was hydrogen, due to its high lifting capacity and ready availability. Helium gas has almost… Read more →

​​What are Contact Lenses made of?

There are three main categories of contact lenses, based on the materials they are made of: soft contacts, rigid gas permeable (GP) contacts, and hybrid contact lenses. Soft contacts are made of pliable hydrophilic (“water-loving”) plastics called hydrogels. Hydrogels absorb significant amounts of water to keep the lenses soft and supple. Because of this water-loving characteristic, the water content of… Read more →

Mt fuji japan


How many islands are there in Japan? Japan is a stratovolcanic archipelago of 6,852 islands. The four largest islands are Honshu, Hokkaido, Kyushu, and Shikoku, which together comprise about ninety-seven percent of Japan’s land area.           Why does Japan get so many earthquakes? Japan is located along the Pacific “ring of fire”, on the edges of… Read more →

Beach sand animal crab

Most Expensive Liquid in World

Scorpion Venom is the most expensive liquid on earth at approx $39,000,000 per gallon/3.79 liters. Scorpions use their venom as a defence against predators to paralyse and kill their prey. The venom is comprised of groups of complex molecules called neurotoxins. These are proteins consisting of 60-70 cross-linked amino acids that when injected attack the nerve cells of the victim… Read more →

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Some World Facts

1. Which national anthem don’t have official lyrics? The Marcha Real (Spanish pronunciation: [ˈmartʃa reˈal], “Royal March”) is the national anthem of Spain. It is one of only four national anthems (along with those of Bosnia and Herzegovina, Kosovo, and San Marino) in the world to have no official lyrics. 2. Which city located in two continents? Istanbul is the city in the world located on two… Read more →

Rain forest

Animal World (Part 2)

1. Which animal has the best sense of smell? An elephant’s trunk is not only long, it is packed with five times more smell receptors than humans. And now research has found that the African elephants have the greatest sense of smell among mammals – even beating dogs including the bloodhound renowned for its sniffing ability. 2. Why Bird Poop… Read more →

Black android smartphone on top of white book

Password: Random / Pronounceable Passwords + Online Tools To Generate Password

Imagine you’re trying to sign up to an account or service and at the ‘enter password’ step you reach a cul de sac because you cannot come up with a good strong password. With advancements in online security measures, websites and services simply do not allow you to keep a straightforward or easy password for the sake of your own data’s security. But at… Read more →

Close up photo of playing cards

The history of Kings in Playing cards

The king card is the oldest and most universal court card. It most likely originated in Persian Ganjifeh where kings are depicted as seated on thrones and outranking the viceroy cards which are mounted on horses. Playing cards were transmitted to Italy and Spain via the Mamluks and Moors. The best preserved and most complete deck of Mamluk cards, the Topkapı pack, did not display human figures but… Read more →

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English Fun Facts

What is the shortest sentence that has all 26 letters in the English alphabet? Pack my box with five dozen liquor jugs. This has thirty-two letters and repeats the letters i, e and o. Brick quiz whangs jumpy veldt fox.  The quick brown fox jumps over the lazy dog. It contains three e’s, two h’s, four o’s two r’s, two t’s, and two u’s. Which is the longest word in… Read more →

Keto Diet & Vitamin D

What is the Ketogenic Diet? A keto diet is well known for being a low carb diet, where the body produces ketones in the liver to be used as energy. It’s referred to as many different names – ketogenic diet, low carb diet, low carb high fat (LCHF), etc. When you eat something high in carbs, your body will produce glucose and insulin. What is… Read more →