I learned this today. Octopuses have blue blood because they have adapted to live in cold, deep water. Octopuses live in every ocean on Earth, and they live in a range of different conditions. A lot of them live at great depths and this is the main reason why they have evolved to have blue […]
#171 Why do octopuses have blue blood? Read More »
I learned this today. A concussion is a mild traumatic brain injury that temporarily affects brain functioning. Our brains are protected by cerebrospinal fluid. Cerebrospinal fluid is a colorless fluid that is derived from blood plasma, but it has no protein. It surrounds the brain and acts as a buffer between the brain and the
#170 What is a concussion? Read More »
I learned this today. The UK finished paying its World War 2 debt on 29th December 2006 and its World War 1 debt on 9 March 2015. Fighting World War 1 and World War 2 cost the UK a lot more than they could have imagined. Even though they had an empire, they didn’t have
#169 When did the UK finish paying its World War 1 and 2 debts? Read More »
I learned this today. The moon is moving away from Earth at a rate of 3.78cm per year, but there will be a time when it will stop moving away and then it will start to fall in towards Earth. However, we are talking about a hundred billion years. The moon has been dated to
#168 Will we lose our moon? Read More »
I learned this today. Antarctica is a polar desert because it has less than 250mm a year of precipitation, which is the set amount to be classified as a desert. However, it is classified as an ice cap climate because it isn’t hot enough to be called a desert. Deserts can be classified using the
#167 Is Antarctica a desert? Read More »
I learned this today. Bamboo can grow so fast because it doesn’t need leaves until it is fully grown, it grows with a constant diameter, and it can stretch its cells. Bamboo is actually a grass, and it is one of the fastest growing plants in the world. Bamboo is generally fast growing, but some
#166 How does bamboo grow so fast? Read More »
I learned this today. Our bodies make energy from food by breaking it down and converting the chemical energy that is stored in it. Our bodies need energy to move and to exercise, but we also need energy just to live. Even when we think we are perfectly still, our bodies are burning energy so
#165 How do humans make energy from food? Read More »
I learned this today. Russia didn’t think it would be able to defend Alaska from Britain, had no real reason to keep Alaska, didn’t want Britain as a neighbor, and needed the money, which is why they agreed to sell it. First, we need to go back a few hundred years in time to look
#164 Why did Russia sell Alaska to the United States? Read More »
I learned this today. The assassination of the Archduke Franz Ferdinand on 28th June 1914 started World War 1 because of a series of treaties that existed across Europe. It should be noted that the assassination didn’t cause the war. Because of the rising tensions in Europe, war was probably going to happen at some
#163 Why did the assassination of Archduke Franz Ferdinand start World War 1? Read More »
I learned this today. No one seems to know the definite cause of Alzheimer’s Disease but it seems to be connected with the buildup of amyloid plaque in the brain, entanglement in the neurons, and inflammation of neurons. Alzheimer’s Disease was named after Dr. Alois Alzheimer. The disease had obviously existed for thousands of years,
#162 What causes Alzheimer’s Disease? Read More »
