Author Archives: Lawrence Liang

Does the Ketogenic Diet Really Work?

People nowadays are obsessed with the idea of being healthy; after all, who doesn’t want to feel good and look good at the same time? Besides exercising regularly and sticking to a proper sleeping schedule, the most important way to achieve this is to eat a balanced diet. However, there is no ultimate diet that works for everyone; a diet that may keep one person energized throughout the day while allowing them to look fit and strong might make someone else overweight or sick. Many diets gain and lose popularity throughout the years, but there is one diet that stands out, especially for athletes and people looking to lose weight: the ketogenic diet.

Guacamole recipe easy to make in serving dish

Guacamole is a dip made from avocados, which is a great source of healthy fats
(photo credit: Elise Bauer at simplyrecipes.com)

Carbohydrates are one of the three macronutrients in the food we eat and it is broken down into glucose and used as the body’s primary source of energy. However, in the keto diet, little or no carbs are consumed in order to force the body into ketosis (a metabolic state where the body starts to burn fat instead of carbs as a primary fuel source). Since carbs hold onto water and no carbs are being consumed, a person who starts keto will lose weight, most of which comes from the loss of water. It can also promote further weight loss because of intermittent fasting (eating only during a certain number of hours each day; during the fasting period, the body has no food calories to make energy and is forced to use fat reserves instead).

Interestingly, the ketogenic diet can also help children with epilepsy. As mentioned before, due to the lack of carbohydrates, the body is in ketosis because the liver converts fat into ketone bodies. In a study, researchers found that since there are more ketone bodies in the bloodstream, as well as a reduction in blood sugar, the chances of a seizure are greatly lowered.

However, there are some side effects and risks associated with the ketogenic diet. Not eating enough carbohydrates can cause hunger, which in turn causes headaches and fatigue. There may also be vitamin and mineral deficiencies as well as dehydration and constipation. In addition, children who use the keto diet for long periods of time may experience slow or stunted growth because they are not getting proper nutrition.

YouTube Preview Image

Video of a Keto Breakfast Rollup Recipe
(credit: RuledMe on Youtube)

Lawrence Liang

Telescopes and Spacecrafts: Exploring the Great Unknown

Humankind has always been fascinated with the stars. To unveil the mysteries that could be hiding out there beyond our planet, we first invented the telescope, an optical instrument that allows us to observe distant objects, and later on, spacecrafts and rockets, the vehicles that allow us to travel through space.

THE HUBBLE SPACE TELESCOPE

In 1610, Galileo was among the first scientists to use a telescope and the discoveries he made completely changed what we knew about our world. Today, telescopes have become so advanced that they can not only observe in the visible spectrum, but in the near infrared and near ultraviolet spectra as well. One of the most famous and most useful modern telescopes is the Hubble Space Telescope (HST), which was launched into Earth’s orbit in 1990 and is still in use today. Since it is high above Earth’s atmosphere, it is unaffected by light pollution and rain clouds, which allows it to capture perfect photos of our universe.

File:Star-forming region S106 (captured by the Hubble Space Telescope).jpgStar-forming region S106 (photo from HST) Image Credit

SPACECRAFTS AND COLONIZATION

However, being able to see the stars and planets is not enough; we created spacecrafts that could take us beyond the confines of the Earth, with the dream of one day establishing a colony on another planet. This is the ultimate goal of SpaceX, an aerospace manufacturer and space transportation services company founded by Elon Musk. SpaceX intends to colonize Mars, which is the planet most habitable for humans due to similar surface conditions and solar days (the calculated time with respect to the sun). Although the temperature and composition of the atmosphere differ greatly from Earth, scientists are optimistic about colonization because of Mars’ close proximity and water has been found in the form of ice below its surface.

In order to establish a colony on Mars, SpaceX is developing an interplanetary transport system that will shuttle people and supplies between the two planets. This system, the Big Falcon Rocket (BFR), will be reusable and it will be capable of not only transportation, but orbital and interplanetary missions as well. It is intended to be the ultimate launch vehicle and spacecraft and will render all other rockets obsolete.

Additionally, to minimize the enormous costs of space travel, SpaceX has also been developing a reusable launch system. In order to explain how this works, the terms “spacecraft” and “rocket” must first be differentiated and defined. The spacecraft is the vehicle used by astronauts to travel through space and the rocket is the vehicle that propels it off of Earth’s surface. When a launch is successful and both the spacecraft and rocket exit the atmosphere, the latter is jettisoned. However, the rocket is the most expensive part of the launch, so reusing it can save millions of dollars. SpaceX has managed to create a rocket that can withstand reentry of Earth’s atmosphere without burning up and land safely before flying again.

YouTube Preview Image Video of SpaceX’s Falcon 9 Rocket Reflight from National Geographic

Lawrence Liang