The 10 greatest Engineers of all time: 1.Archimedes
Archimedes of Syracuse (c. 287 – c. 212 BC) was a Greek mathematician, physicist, engineer, astronomer, and inventor from the ancient city of Syracuse in Sicily.

12 basic components of a building structure:

1.Roof
2.Parapet
3.Lintels
4.Beams and slabs
5.Columns
6.Damp proof course (DPC)
7.Walls
8.Floor
9.Stairs
10.Plinth Beam
11.Plinth
12.Foundation

🧵 1. Roof
The roof forms the topmost component of a building structure. It covers the top face of the building. Roofs can be either flat or sloped based on the location and weather conditions of the area.

The 5 main components of an aircraft ✈️:

1. Fuselage
The fuselage is one of the major aircraft components. Its long hollow tube, also known as the body of the airplane, holds the passengers along with cargo. 2. Wings
Also known as foils, are one of the aircraft parts that are most imperative for flight. The airflow over the wings is what generates most of the lifting force necessary for flight.

Valve, in mechanical engineering, device for controlling the flow of fluids (liquids, gases, slurries) in a pipe or other enclosure.

Different types of valves: Globe valve: It operates by reciprocating action of disc or plug. The disc or plug moves to or away from the seat thereby stopping the fluid flow or allowing the fluid to flow. Pressure drop in the globe valve is high.

The most popular programming languages:

1. Javascript
JavaScript is a high-level programming language that is one of the core technologies of the World Wide Web. It is used as a client-side programming language by 97.8 percent of all websites. 2. Python
Python is one of the most popular programming languages today and is easy for beginners to learn because of its readability. It is a free, open-source programming language with extensive support modules and community development.

Cleanrooms are classified according to the number and size of particles permitted per volume of air. Large numbers like "class 100" or "class 1000" refer to FED-STD-209E, and denote the number of particles of size 0.5 μm or larger permitted per cubic foot of air. International Organization for Standardization (ISO).

15 important laws of physics:

1. Archimedes Principle.
It states that the upward buoyant force that is exerted on a body immersed in a fluid, whether fully or partially, is equal to the weight of the fluid that the body displaces. 2. Avagadro’s Law
In 1811 it was discovered by an Italian Scientist Anedeos Avagadro. This law states that equal volume of all gases under the same conditions of temperature and pressure contain equal number of molecules.

Cryptocurrency terms you should know:

🧵

Bitcoin - The first and most valuable cryptocurrency, launched on Jan. 3, 2009. Block - groups of data within a blockchain. On cryptocurrency blockchains, blocks are made up of transaction records as users buy or sell coins. Each block can hold only a certain amount of information. Once it reaches that limit, a new block is formed to continue the chain.

Newton's three laws of motion form an essential component of modern physics. And like many scientific laws, they're rather elegant in their simplicity: 1. The first law states an object in motion stays in motion unless acted upon by an outside force. For a ball rolling across the floor, that outside force could be the friction between the ball and the floor, or it could be the toddler that kicks the ball in another direction.

Greatest aerospace engineers of all time:

1. Orville Wright and Wilbur Wright
2. Wernher von Braun
3. George Cayley
4. Robert H. Goddard
5. Sergei Korolev
6. Elon Musk The Wright Brothers. In 1903, siblings Orville and Wilbur Wright created the first motor-powered aircraft with the ability to take off, fly, and ultimately land. For their first set of trials, Wilbur was able to fly the Wright Flyer 59 seconds, reaching an 852-foot elevation.

5 Rules you need to follow for successful project management: 1. Clear objectives and project scope. Make it clear to yourself, the team and every individual who would partake throughout the project why you are doing this project. It would be amiss to initiate a project and still have to attend to questions about clarity midway.

42 fundamental rules of software engineering:

1) If you don’t do a system architectural design with well-defined interfaces, integration will be a big mess.

2) Design before coding.

🧵 3) If a project is late and you add more people, the project will be even later.
4) Team members that are new to a project are less productive (1/3 to 2/3 less) than the adequately trained people.

12 tips for becoming a successful engineer:

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1. Define Your Goals. Define where you would like to be as an engineer in the medium and long-term. 2. Identify Role Models and Mentors. You can seek inspiration from role models in the comapny you work for or outside your company, including industry leaders. When doing this, don’t just look at the great engineering work they do, but also how they became successful.

Different types of screw. 🧵

1. Wood screws are perhaps the most commonly recognised type of screw. They have a smooth shank and tapered point that make them ideal for penetrating wood. What they’re used for: all types of wood. 2. Machine screws. Blunt ended screws with threads, typically made from brass or steel.
What they’re used for: fastening metal parts together

Thermodynamics is the study of how energy works in a system. It can be reduced to several basic laws, which British physicist and novelist C.P. Snow cleverly summed up as follows:

1. You can't win.
2. You can't break even.
3. You can't quit the game.
🧵 1. By saying you can't win, Snow meant that since matter and energy are conserved, you can't get one without giving up some of the other (i.e., E=mc²).

How a small nuclear war would transform the entire planet:

1/6

Smoke from the incinerated cities rises high into the atmosphere, wrapping the planet in a blanket of soot that blocks the Sun’s rays.

🧵 2/6

Lower global temperatures 2.25°F (1.26°C) for 2-3 years following war. In more tropical areas temperatures could fall from 5.4 to 7.2°F (3 to 4°C)

10 things every driver should have in their vehicle:

🧵 1/10 First-aid Kit

The obvious reason to carry one is to help after the event of an accident for anyone involved. Many countries around the world require drivers to have a first aid kit in their vehicles at all times.

Everything you need to know about Lithium-ion batteries 🪫🔋

As an electric car owner, laptop and smartphone user, you have choices how to prolong battery life.

Let’s go 🧵 1/7

Depth of discharge (DoD) determines the cycle count of the battery. The smaller the discharge, the longer the battery will last. Avoid full discharges and charge the battery more often between uses. Partial discharge on Li-ion is fine.

5 facts you should know about nuclear power in the US:

1/5
US nuclear power plants generated 778 billion kilowatt hours of electricity in 2021. US reactors have supplied around 20% of the nation's power since the 1990s and are the largest producer of nuclear energy in world. 2/5
Nuclear energy provided 50% of America’s carbon-free electricity in 2021, making it the largest domestic source of clean energy. Nuclear power plants do not emit greenhouse gases while generating electricity.

10 things every computer user should know:

1/10 Back up your data regularly

Setting a “backup” takes a few minutes. “Backup” data to an external hard drive and cloud services. No matter what happens to your hardware and no matter where you are, you’ll still get your data back. 2/10 Keep your personal informations safe.

Make sure you use a strong password and never use open public Wi-Fi networks without protection. Be suspicious about strange emails, don’t click on suspicious links, and don’t send your personal info to any site that doesn’t use https.