Posts

Showing posts from July, 2019

Immunotherapy: Your Immune System is Cancer's Biggest Enemy

Image
There’s no doubt about it - our immune systems are powerful. We’ve all had moments where we don’t pay much attention to our immune systems because of lack of sleep or high stress, and had to endure bouts of sneezing, coughing, or fever in the coming days. Some of us have taken extra steps to make sure our immune systems are as strong as possible, and noticed how invincible it feels to go months without getting sick. Everyday function, brain power, and physical ability depends strongly on our body’s ability to fight off viruses and disease. The power that our immune system provides in determining our health can even be utilized to fight cancer. Immunotherapy is a method of cancer treatment that helps to strengthen the immune system to be able to fight cancer cells better, as well as direct the immune system towards specific cancer cells.RF and RM Images and Video of Immunotherapy A large number of cells in our body aid in the immune system. White blood cells (lymphocytes) recognize fo…

Origins of Modern Chemistry

Image
How did we get from discovering fire to using nanotubes in labs? The concept of atoms was first conceived in ancient Greece by a group of philosophers known as the atomists. In 330 BC, Aristotle opposed this theory. He was a proponent of the elemental theory, positing that all matter was composed of the elements earth, fire, water, and air. He even added an element, aether (or ether). The elemental theory continued into the middle ages through the study of alchemy. Alchemists added sulfur, salt, and mercury to the list. RF and RM Stock Images and Video
of the History of Modern Chemistry
Finally, in 1661, Robert Boyle published the book "The Sceptical Chymist", presenting his hypothesis of particles in motion and asserting that only experiments using the "scientific method" could be considered true.
Another milestone in chemistry was the discovery of electrochemistry. Alessandro Volta invented the first battery in 1800, using piles of copper and zinc discs. They w…

History of Flight: From Kites to Space Travel

Image
There are over 100,000 airplane flights a day, with almost 10,000 planes in the air simultaneously. It's taken humanity thousands of years to get to this point, starting with the invention of the humble kite in China in 475 BC. The popularity of kite flying in China began people thinking about making human flight a reality. Soaring through the air untethered to the ground. Before, it has been the realm of mythology, such as Icarus, Alexander the Great, and Pegasus. Images & Video of the History of Flight On the way, there were many failed attempts over the centuries. At first, many inventors tried to replicate the wings of birds, even using feathers or lightweight wood. But, a human's arm muscles are not like a bird's. Leonardo DaVinci made over 100 drawings of his theories of flight and flying machines. None of which were built in his lifetime. It took until 1783, Paris, France before man reached this goal. Jean-François Pilâtre de Rozier and François Laurent d…

Vaccines: How They Protect Us

Image
Although vaccination has been a hot topic in recent news, the study of vaccination goes back to around 1,000 years ago. Early records of smallpox immunization, called variolation, can be dated back to 1000 CE in China.

Variolation was a practice that involved taking material (usually part of a scab) from a patient that was infected with smallpox and exposing a healthy individual to this material. The doctor would often insert the infected material underneath the healthy person’s skin to achieve proper exposure. The hope was that the healthy person would get sick, their immune system would successfully fight the virus, and they would then be immune to the disease once they recovered. Not surprisingly, some patients died from an intentional infection of smallpox, but the ones that did survive were indeed immune to future infections. RF and RM Images of Viruses and Vaccines Luckily, we have since discovered a less risky method of immunization, but the general concept is similar. The body…