What are three surprising facts about goldfish?

 Most people assume goldfish are small, easy to care for fish that don’t live long or need big tanks, however this is completely wrong.

1 Goldfish can grow over a foot long

Goldfish can grow very big and very quickly with the right care, though if kept in unfiltered small tanks they will be stunted due to bad water quality (which is very harmful to them and should never be done or encouraged)

The largest recorded goldfish measured 47cm long. They can become enormous.

The large fish you see here is 16 months old and about 20cm, the little ones are about 4 months old and 6–8cm, and they will catch up.

2 Goldfish need big tanks, bowls are NOT suitable

You may commonly see goldfish kept in bowls but they are not appropriate environments for any fish, least of all goldfish.

‘starter kits’ are commonly sold as perfect environments for goldfish when within a couple of years they should be bigger thank the bowl. In bowls and small tanks water quality cannot be maintained and kept safe, resulting in ammonia levels building up and harming the goldfish. The waste they produce is toxic and if water cannot be kept at safe levels it can seruouslt harm or kill them.

Here’s a good size comparison showing how adult goldfish literally cannot even fit in these starter kits.

A good way to determine appropriate tank sizes is to keep the fish in a tank 6x its adult length, so goldfish, all of which can reach around 1 foot long, require a tank of at least 6 feet long. Not a 6 inch bowl.

3. Goldfish can live for decades

Often people assume goldfish are a very short lived pet but that is also very untrue. They only live short lives due to bad care (sometimes genetic problems can affect their lifespan too)

Fancy goldfish should live around 10 years, often more depending on the type.

Single tailed goldfish should live over 20 years, the oldest recorded goldfish lived to over 40 years old.

What is surprising about the history of the internet?

 Here are some records in the history of the internet:

• The first search engine was WebCrawler.com in 1994.
• The first change on Wikipedia was made by Jimmy Wales (founder) writing "Hello, World!".
• The first domain in history is symbolycs .com and was registered on March 15, 1985 by Symbolics, a company that produced computers

• The first Instant Messenger chat was ICQ launched in 1996 and still used today.
• The first website in history (still online here) was put online by CERN in Geneva in 1990 and contains information for the World Wide Web Project J.
• The first e-mail was sent in 1971 by Ray Tomlinson. The message was sent before the creation of the Internet network and before the introduction of the "@" symbol in the e-mail addresses!
• The first online bank was Stanford Federal Credit Union. In October 1994, it provided all its customers with Internet banking services.
• The first Blog is dated 1994 and was written by the American journalist Justin Hall.

• The first spam e-mail was apparently sent by Gary Thuerk, on Arpanet, in 1979. It was an advertisement sent to 393 people at once.
• The first web browser, released in 1993, was called Mosaic and can still be downloaded!
• The first podcast was by Dave Winer, an American software developer who in 2001 added audio content to his blog's RSS feed.
• The first mobile phone with Internet access was the Nokia 9000 Communicator (launched in 1996 in Finland).
• The first e-commerce website is called NetMarket.

• The first item sold on eBay was a broken $14.83 worth of laser pointer sold by one of the co-founders of the well-known e-commerce.
• The first video uploaded to YouTube was titled "Me at the Zoo" and was published on April 23, 2005 by YouTube co-founder Jawed Karim. It's still online and you can see it.
• The first Hacker attack in history took place in 1990. Object of the attack: the websites of the US Department of Justice, the US Air Force, the CIA, NASA and some others.
• The first Social Network was born in 2000 and it's called FriendUnited.
• The first GIF in history was created by Compuserve in 1987.

What are some particularly astonishing or surprising facts?

 

• The “World War 1” ended at 11th hour on the 11th day of the 11th month of 1918

• Iceland is the only country without mosquitoes, snakes or other reptiles.

• Iceland has one of the largest gun ownership rates in the world and lowest crime rates as well.

• Researchers testing insects repellents used Victoria Secret’s Bombshell perfume as a standard and accidentally discovered that it repels mosquitoes better than any repellents in the market.

• Bruce Lee was so fast, they actually had to run his films slower so that you can see his moves.

• A tiger’s roar can be heard as far as 1.8 miles (3 km) away.

• The first colgate toothpaste – Colgate’s Antiseptic dental powder.

• The world’s deepest, darkest, oldest and quietest model room is 220 feet underground, at Grand Canyon Caverns, in a 65 million-year-old cave.

• This is how baby elephants drink water. They don’t know how to use their trunks to drink until they are nine months.

• Harry Potter was first rejected by 12 different book publishers.

What are some surprising mathematical facts?

 Clean bottle

Many of us do not know what they tell or how to describe them mathematically.

A clean bottle is an object that has no inside and no outside. It is a fixed shape where if you walk through the starting point of a surface, you will never cross one end, and will return to the original place. It is an object of 1 dimension with no edges.

This photo shows how to make a clean bottle

Clean bottle is a surface shape that cannot be made in 3D. It may just look like a closed bottle but you cannot drink water from it. All the water will fall from it.

This is a beautiful picture of a clean bottle. Makes a surprise.

Thank you for reading.

Images: Google image

What are some of the most interesting/surprising facts about any country?

 Singapore

•Singapore is 100% urbanised. Singapore has no countryside, apart from the relatively insignificant amount of countryside on other islands (in the country of Singapore) such as in Pulau Ubin.

•Singapore is a city, a capital and a state all at once, making it one of only three City States in the world.

•Singapore imports sand and fresh water from Malaysia. Singapore is literally building into the sea to create more land to enlarge the country.

Ongoing land reclamation projects have increased Singapore’s land area from 581.5km squared in the 1960s to 719.1km squared in 2015, an increase of some 23% (130km squared)

•Singapore has the world’s tallest indoor waterfall, which is 35 meters high! It’s in Gardens by the Bay, which is an indoor garden housing over 500,000 plants from across the world.

•The Great Singapore Duck Race is held every year in order to raise money for charity. In 2002 it broke a world record with more than 123,000 toy ducks racing on the Singapore River.

•Singapore has the fastest walkers on the planet. According to a research by the British Council, Singaporeans have the fastest walking speed. On average, Singaporeans walk a distance of 18 metres in 10.55 seconds. That's approximately 6.15km in an hour!

•Singapore is among the 20 smallest countries in the world. To give you context, USA is about 15,000 times bigger.

•Our local blend of Singlish is actually pretty well-known internationally. We even have two words – lah and sinseh – in the online version of the Oxford English Dictionary.

•The highest natural point in Singapore is Bukit Timah Hill – which is only 164 metres high.

•The Bukit Timah Nature Reserve in Singapore contains more species of trees than the entire North American continent.

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Sources

49 Interesting Facts About Singapore We Bet You Didn’t Know!

Our Top Ten - Interesting Facts About Singapore

12 Mind-Blowing Singapore Facts You Never Knew

What are some of the most interesting/surprising facts about any country?

 My country is Kenya

1. Coffee is one of the biggest source of foreign income in Kenya but most Kenyans prefer to take tea.
2. Kenyan environmentalist Professor Wangari Maathai won the Nobel Peace Prize in 2004. She was the first African woman to win that prize.
3. Kenya was colonized by the British from 1895–1963 when it got independence.
4. Kenya has an unrivalled wildlife population and breathtaking safari destinations.

5) Kenya was the first country to make a breakthrough in mobile money transfer called Mpesa, where you have complete control of the money in your account by just using your phone even without an internet connection.

6)Before marriage, Kenyans still pay dowry to the brides parents, which starts at 10 cows.

7)Most Kenyans love to know what you think of President Obama, the only US president whose father was a Kenyan.

8)Driving the Kenyan way means fitting 28 people in a 14 seater mini-bus

9) Kenya’s great rift valley was formed 20 million years ago, when the earth’s crust was split

10) Kenya has 42 ethnic tribes with unique & wonderful culture

What are some surprising facts about Albert Einstein?

 Einstein loved to sail, viewing it as a way to relax and think, but he was notoriously bad at it.

He couldn't swim and frequently capsized his boat, named Tümmler (German for "porpoise"), often needing to be rescued by his neighbors in Long Island. He didn't let his lack of skill or inability to swim deter him.

Also, Einstein did not wear socks.

He found them unnecessary and felt they were an annoyance, often bragging to friends about getting away with not wearing them, even in formal settings.

So we can deduce that, while capcizing frequently, at least he never got his socks wet

What are some surprising facts about food?

 1. Pizza used to be a lower-class food. Originally, pizza in Naples was just a cheap meal for working people. After Queen Margherita tasted it, pizza became famous and went global.

2. Tomatoes were once thought to be poisonous. In the 18th century, Europeans thought tomatoes were poisonous because their acidity reacted with pewter dishes , causing lead poisoning.

3. Coca-Cola used to contain cocaine. When it was first made in 1886, Coca-Cola used coca leaf extract before finally removing it in the early 1900s.

4. Ketchup was once sold as medicine. In the 1830s, ketchup was marketed as a remedy

for indigestion , and there was even a pill version sold in pharmacies.