ergoscience

Comparative Analysis of Cytotoxic Effects of Caffeine and Theobromine in HEK293a Cells

Uncategorized / By

This study was conducted to determine whether theobromine could be a less addictive, yet effective alternative to caffeine. 0.1mM Caffeine and theobromine were added to separate plates containing HEK293a and were incubated for 48 hours to observe the number of alive/dead cells on each plate. It was hypothesized that theobromine will yield less cytotoxic effects …

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Tardigrades, the Most “Immortal” Animal

Biology / By

Tardigrades, commonly known as “water bears”, are micro-animals that have plump bodies and eight stubby legs. Depending on the species, they range in size from 0.1 to 1.5 mm. They are covered in a tough cuticle, similar to the exoskeletons of grasshoppers, and have four to six claws on the end of their legs. These claws are made of chitin and they grab things to propel themselves forward. Their unique mouthpart is called a bucco pharyngeal apparatus, which allows them to extract nutrients from plants and microorganisms. Tardigrades do not have a respiratory system and instead, they exchange gas throughout their whole body. There are more than 1000 different tardigrade species and they all belong to an elite category of animals that can withstand just about any extreme condition.

Bluetooth

Uncategorized / By

What is Bluetooth and How Was it Discovered? Bluetooth, in a nutshell, is a wireless technology protocol for transmitting data over short distances between fixed and mobile devices. Nils Rydbeck of Ericsson Mobile in Lund, Sweden, was the first to create the “short-link” radio technology, which was later dubbed Bluetooth, in 1989. Ericsson’s short-link technology …

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Lockdowns: Are empty beaches helping the turtles?

Biology / By

Almost a year has passed since the first outbreak of the coronavirus was recorded in Wuhan, China. Lockdowns are practiced around the world and as a result, wildlife is thriving in deserted cities and tourist spots. One example is the leatherback sea turtles, with reports in the increasing number of hatchlings, thanks to Thai tourists that are staying at home amid the dire situation. Environmentalists have found 11 leatherback sea turtle nests as of April since last November which is the highest number in 20 years.

Aurora

Chemistry / By

How Does an Aurora Form? An aurora is a natural phenomenon caused by the interaction between high-energy particles (electrons) and neutral atoms in the Earth’s upper atmosphere. These high-energy particles can excite (by collisions) valence electrons that are bound to the neutral atom. The excited electrons can then return to their initial, lower energy state …

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Transistors

Physics / By

A transistor is an electronic component whose function is to act as a switch as well as an amplifier. Automatic computations are done through the use of billions of nanoscopic transistors that are contained in computers, phones…etc.

Quantum Computers – Algorithms

Physics / By

Introduction This article is Part 3 of a series on quantum computing.  In Part 1, we covered an overview of the history, principles, types, and quantum computing applications. In Part 2, we explored its computational mechanism, including quantum mechanics experiments and principles, quantum gates, mathematical representations of qubits, and quantum measurement. We also dived into …

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Lithium-Ion Battery

Chemistry / By

Introduction Lithium-ion batteries are used in a wide range of things such as smartphones, computers, robots, and most other electronics due to their ability to store a high power capacity. Lithium-ion batteries can charge very quickly, are long-lasting, and currently provide the best technology to power electronics. A lithium-ion battery is made up of lithium …

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Noise cancellation

Physics / By

We all listen to music or watch videos using headphones every day. We all commute to school using trains and buses. However, unwanted noise generated by these vehicles can reduce the quality of our listening experience. So, companies, such as Bose, came up with the technology called noise cancellation. This technology enables us to listen to the sound more clearly as if we are listening in a quiet place. Some of you might have AirPods, Bose headphones, Beats headphones, etc. These headphones are famous for their noise cancellation technology. In this article, I will explain how this technology works.

Human Blood Types

Biology / By

Human Blood Types Generally, there are 8 common blood types in the human race. They are A+, A-, B+. B-, AB+, AB-, O+, and O-. During blood transfusion, the blood types of the donor and the recipient are heavily checked upon to ensure that they are of compatible blood types. A mismatching blood type will …

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