Nuclear Reactions -James Adhitthana

Nuclear Reactions – Infographic

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What is a nuclear reaction? What is Unified Atomic Mass Unit/Mass Defect/Nuclear Fission/ Nuclear Binding Energy and nuclear power in general? Easy nuclear reaction infographic guide/review to study for your IB Physics SL/HL exams.     DID YOU KNOW? Nuclear Reactions The first induced nuclear reaction was accomplished by famous Australian physicist Ernest Rutherford, the […]

IB Physics CHAPTER 4 – OSCILLATIONS AND WAVES – Summary/Review/Study Guide

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4.1 Oscillations Nature of science: Oscillations in nature Oscillations is basically everywhere and Is very common in our daily lives without us realizing it. Hummingbird flaps its wring at frequency of 20 beats per second. Electrocardiographs are used to monitor heartbeats Stroboscopes to freeze motion in engines and motors. Practical techniques have been developed with […]

What is Malicious Software? (for beginners)

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What are viruses/worms/trojan horses/drive by downloads and all other malware? This is a brief guide for noobs/beginners. Viruses ›A harmful program designed to cause damage to a computer system ›Replicates itself ›Hides self ›Attaches to files Worms ›Virus that automatically spreads without user interaction ›Opening infected email ›Plugging flash drive Trojan Horses ››A virus that […]

ITGS Textbook: Chapter 8 (Models and Simulations) Summary/Review/Study Guide

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Computer Models Models Simplified representations of real concepts and events used to aid understanding or make predictions about outcomes without actually testing them. Computer model Computer program that creates a simplified, mathematical representation of a real world process. Involve vast numbers of highly complex calculations Often run on supercomputers Use variables and processes to create […]

ITGS Textbook: Chapter 7 (Databases) Summary/Review/Study Guide

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Databases a collection of information that has been organized in a certain way or a storage container for data Organized collection of collected data (ex: Privacy Issue) Databases: Business database, transport databases, search engines, online databases, government databases Database Management System DBMS: Software used to create, enter, edit and retrieve data in a database RDBMS: […]

ITGS Textbook: Chapter 12 (Health) Summary/Review/Study Guide

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Medical Experts System How it works? The EMR or Electronic medical Records store patient’s data in a computerized data base. The medicinal records are stored in a centralized database which is housed and maintained by a hospital or healthcare provider. This allows medical staff to view patient’s details including to generate billing information for the […]