Search results for keyword: defensive
ball milling
Introduction
American Football is one of the most popular sports in the world and it has been a major part of American culture for over a century. Football combines the physical nature of a high-intensity sport and the strategic moves of a card game. Players must think on their feet, strategize, ......
1037 
Avery
Tapered chute
Seven Wonders Of The Ancient World
Since the beginning of human civilization, people have been fascinated by the grandeur and wonder of the ancient world. Many amazing monuments, vast cities and incredible architectural achievements have been constructed throughout history. Although most of these......
box foundation
Boxing Basics
Boxing is one of the most popular sports in the world and is one of the oldest organized competitions, dating back as early as the 18th century. Boxing has strict rules and is considered a noble sport because of its long and storied history. The fundamentals of boxing are relativel......
Shield
Shields are some of the oldest weapons of war. Dating all the way back to ancient civilizations, shields have been used to both protect and to attack. Today, shields are still used in warfare, but what are the modern shields used in battle today?
Modern shields come in a variety of shapes and siz......
safety blasting equipment
Security breach detectors are an important element for businesses and organizations that need to protect their confidential data. Data breaches can have serious consequences, putting a company’s operations at risk and potentially leading to large fines and penalties. In order to avoid these catas......
accident investigation
Introduction
An airplane crash is an unfortunate event. It is an event that kills hundreds of people every year and affects more than just the families of those involved. Airplane crashes are a source of chaos and confusion not just for the families of those killed but for victims, the immediate ......
Silica dust
Exploring the Small World of Nanoparticles
The world at the nanoscale is incredibly small and complex. A nanometer, the unit of length commonly used to measure such particles, is one billionth of a meter—therefore, one strand of human hair is roughly 100,000 nanometers wide! Nanoparticles, nanom......
Inert explosion-proof
Passive Armoring
Passive armoring is a term used to describe a form of defensive protection for objects, people and structures. It is typically designed to reduce or even prevent damage from a violent event, such as an explosion or firearm attack. The most common materials used to create passive ......
Application of water source heat pump in civil air defense engineering
Ground-Source Heat Pump in Human Defense Engineering
Abstract
Ground-Source Heat Pump has been widely used in human defense engineering for its advantages in energy conservation, environmental protection and reliability. This article introduced the application of Ground-Source Heat Pump in human......
Main requirements for designing oxygen lance lifting mechanism and replacement device
Design Requirements of Raising and Lowering Mechanism and Replacement Device for Oxygen Gun
Nowadays, oxygen gun plays an important role in a series of military operations. It is often used as a tool for firing missiles and sending out signs in both offensive and defensive operations. In order to......
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