Tuesday, January 31, 2023

Latvia

 A baltic country.

The capital is Riga, on the gulf of Riga.

Latvia has 4,000 historic wooden buildings, more than any European city.

They were part of the soviets and they have ghost towns that once held soviet officials.

They also made a prison into a hotel where guests get treated as prisoners.

They have lots of fortresses.

Latvia has 12,500 rivers.

The population of 2 million.

Euro as currency.


The history of the car

 Ahh, the car, is the main form of transportation for most people on planet earth.

Cars were invented in 1886 when a German inventor of the name Carl Benz, made the Benz-Moterwagen and it became widely available during the 20th. One of the most widely owned was the 1908 Model T (which is the classic roofed car from movies like Sherlock holmes, and old-themed movies and TV shows). The Model T was made by the Ford Motor Company. 

In the US cars were replaced by horse-drawn carriages. Not until automobiles were not in high demand but after 
WW2, a car was part of a "Developed economy".

Cars have controls to park drive and for extra passengers. And over time many additions were added to cars to make them drive better and be more comfortable, such as air conditioning, more comfortable seating, and suspension for smoother driving. 

Most cars are powered by an internal combustion engine and fueled by fossil fuels, but electric cars use electricity to function, it is estimated to be cheaper to buy an electric car instead of a regular fuel-powered car by the year 2025.
The most reason to use electric cars is for the smaller carbon footprint and to help with climate change, as electricity can be made from wind and water, and other sources but fossil fuels are finite. 

But repairs and maintenance, fuel, parking fees, taxes, and insurance do impact the price of a car. The costs of maintaining roads for cars are expensive.
And traffic and accidents are one of the most deadly in the world taking the lives of 46,000 people a year in 
accidents and crashes worldwide.

The benefits of driving a car are convenience (as public transport can be uncomfortable for some), and mobility to go anywhere you wish at fast speeds compared to walking. 

There are more than one Billion cars in use worldwide.

Cars are a vital point in the planet's economy and a massive industry making billions a year. 



Monday, January 30, 2023

The Science of nuclear energy

Nuclear power is from the nucleus from the core of atoms (made of protons and neutrons), and there are two ways to make nuclear energy, fission when the nuclei of atoms split, and fusion when the nuclei fuse together.

Nuclear power plants are filled with uranium-235, to produce heat through nuclear fission, and the heat warms the reactor cooling agent, usually water to produce steam. The steam is used to spin turbines then that turn into an electric generator to create low-carbon electricity.

Uranium is a metal that is in all rocks, and it has several Isotopes, Urainium-238 makes most of the majority of uranium in the world but, it cannot produce a fission chain reaction,, but uranium 235 can, but it makes only 1% of the world's uranium.

To make natural uranium go under fission, it is important to do something called uranium enrichment. Once it is enriched, it can be used to fuel nuclear power plants for 3-5 years. After it is still radioactive and has to be disposed of.

Nuclear power is a really low-carbon source of energy, compared to coal oil, or gas. CO2 barely comes from these power plants, Nuclear reactors generate, and is close to 1/3 of the carbon-free electricity.

Nuclear energy is actually not that harmful to the involvement and it is vital to helping climate change goals.


Saturday, January 28, 2023

Youth Talk Class: 9

 An Influencer is someone who influences others.

Positive influence is like changing your lifestyle to be healthier.

Negative influence is influencing someone to have negative thoughts about Allah. 

Your friends and family can also influence you to maybe start smoking. Or buy a house early, or a car.



Thursday, January 26, 2023

Laos

 Vientiane is their capital.

Laos is in the "golden triangle", which is where most of the world's opium are grown.

Laos has a lot of unexploded ordinances which are bombs and leftovers from the Vietnam war, and they mostly came from the US. The idea is that the US wanted to destroy the Ho Chi Minh trail supply routes to Vietnam, and they used bombs to do that without warning they dropped about 260 million tons of bombs on Laos, making Laos the most bombed capital per capita in history.
About 1/3 of the bombs did not explode but they are still there, they even recycled some of them into plant pots and made their own economy selling these unexploded shells. And Boats are made of these now.

Laos's highest peak Phau Bia is actually not allowed to be climbed as that mountain has unexploded bombs that might cause a threat to the climbers.

On the Mekong river, there is a phenomenon called the Naga fireballs, which are "fireballs" that come rising from the water of the river, although some say it's fake if it is real, scientists say that it might be Phosphine guesses are limited by bacteria that combust under the water.

A population of 8 million people.

They use Lao kip they also accept Thai Bhat, and USD.

They were also colonized by the french so baguettes are sold here.

It is also rude to touch a person on top of their head, as that is considered sacred.


the science of Deforestation

 Deforestation is the fancy way of saying "destroying the trees". 

Throughout history, humans have chopped down trees to make the land for housing and animal grazing, and wood.

Deforestation has altered landscapes all around the world, about 200 years ago 80% of western Europe was forested but today it is only 34% forested, and half of Northern America's forests in the eastern part of the content were chopped down from the 1600s to the 1870s

Today most of the deforestation is done for accessing remote areas in jungles and forests.
Slash and burn methods for agriculture and logging are used, where farmers burn large parts of forests to make space for agriculture and use the ash to fertilize the crops grown. But the land is only fertile for a few years, after that the farmers leave the land and go to another forest to burn and grow crops and the cycle repeats itself.

Tropical forests have also been cleared this way for logging and cattle, and most for rubber and oil palms. Since oil palm is a big industry thanks to logging.

10% of the forests are lost since the 2000s, and around 121,000 square kilometers were lost due to logging in 2019. 

Deforestation is a problem for the biodiversity of the earth because many plants and animals live in the forests that are burned down and cut down every year due to deforestation, as burning and chopping the trees in a forest can drive the animals out of the forests, and some to extinction.

Burning trees and deforestation in general are around 20% of emissions of greenhouse gasses globally. 

Furthermore, the loss of trees can also cause erosion in the soil, which is the weakness and stability of the dirt, since there are no trees to support the dirt, it becomes soft and easy to fall, and that in turn causes landslides. 

But not all hope is lost, thanks to conservation efforts, humans are replanting trees to combat the large tree shortage. 




history of the Lighter

The lighter was made by Johann Wolfgang Döbereiner, a german chemist and professor of chemistry and technology at the Universisy of Jena in Germany.

He invent the lighter 1923 and named it "Feuzeug" or Döbereiner's lamp, and it worked on Sulfiric acid, zinc and hydrogen gas to light.

But is combination wasn't really safe as it was commonly to spontaneously combust or explode if left at high temptrues, and it was very difficult and cumbersome to use.

But even with the dangers of the "lamp", it became widespread around Europe, and an estimated 20,000 were in use. This caused some manufacturers to work to improve on the design of the lamp.



An Austrian scientist named Carl Auer von Welsbach, made the first flint lighers, whihc came to be known as flint, in 1903. It used. Even though they were called "flint lighers", they never really used flint as they used 
Ferrocerium which is a human made mixture of metals that made sparks.



Zippo lighter (coming from the word zipper) are the lighers that have the flipy thingy on the top with the open flame. And it was made by George Blaisdell in 1932 in Bradford Pennsylvania, it had a high flame that was windproof since the base of the flame was shielded by metal plate, the Zippo was made of brass but after WW2 it wwas made with cracker steel since of metal shortages during the war. 
Soldgerrs during WW2 held the zippo with crests of their military unit.


BIC lighers are the lighers are the sold by BIC (which makes up aroudn 35.5% of their yearly revenue), they started selling them in 1917, it was one of the only disposable lighers on the market since Zippo was made of steel and expensive to throw away. It was made to be relibile and affordable to the general public instead of buying expensive Zippo, just buy a cheep BIC lighter, and now they are everywhere as part.

Now the BIC lighers are used everywhere and are the most common lighers, aldought the classy people will buy a Zippo to fancy. Now you can use lighers everywhere and they are used in BBQ's and for lighting fires all around the globe.