Fun, Bobblehead, dual pendulum novelties crafted from hockey pucks and fishing line both entertain people and illustrate the four fields of STEM education: science, technology, engineering, & math, now being promoted to solve our nations troubles. Employing familiar physical realities, such as push, pull, flex, eneract, and sense to introduce and symbolize STEM, dual pendulums entertain, enlighten, puzzle, & inspire people of almost all ages and persuasions, teenagers upThese newly developed, educational, dual pendulum novelties support the extensive effort and investment in STEM education by our government, president, legislators, and educators to solve our nation’s ills.Invoking mysterious gravity and mystical energy, dual pendulums exhibit the radiant, vibrant, communicant, eneractive nature and behavior of people and things, besides involving and symbolizing the four fields of STEM: science, technology, engineering, and math.The inventor claims that these astute learning objects can help to technically self-educate America in the hands-on, minds-on, inquiry way of educational standards. They tend to integrate the rather fragmented knowledge taught and memorized in school back into a unified whole.Scientist and teachers have employed similar simple, classical pendulums for centuries to informally introduce and teach STEM subjects.The dual-pendulum idea did not just happen. It grew out of the development of sophisticated sensing instruments and related pendulum calibrators for testing the behavior and monitoring the health of things.Dual pendulums connect two classic pendulums together by simply stringing hard rubber disks on an oversize, flexible plastic line. The disks slide on the line into position for conducting science experiments and inertially sensing changes in motion.With the two disks positioned apart at the lower knot, the lower disk and line form a visual, bobblehead, inertial motion sensor. Pull of the Earth (gravity) acts as a spring restraint. Like you, such sensors ordinarily flex to sense changes in motion, but not those of a coasting simple swing or pendulum (upper one), creating a mystery. Over a billion similar inertial motion sensors, also called accelerometers, now help trigger car air bags and stabilize camera images.Exercising a dual pendulum, a person experiences interacting objects transferring energy into action push and pull on one another to move, flex, vibrate, and sense per laws of nature, while properties of materials: mass (God particles), stiffness (elasticity), friction, and gravity, resist moving as they store energy in various ways. Similar things happen in other energy realms. Such eneraction, a new word, senses, animates, and powers our wonderful World.Operating a dual pendulum involves all four fields of STEM. Conducting classic science experiments requires engineering changes to a Plum’s structure to modify behavior by sliding disks on the line. Solving the mystery involves applying force-and-motion technology. Centrally adding mass confirms Newton’s famous law of motion, modeled mathematically as F=ma. Geometry helps explain why pendulums automatically swing, and why a shorter line increases the swinging rate.Testing a dual pendulum, students quickly learn that without a transfer of energy, nothing happens: objects don’t move, structures don’t flex, and sensors don’t sense, or change status. For references or more information about pendulums, visit Wikipedia and You Tube.Powering a dual pendulum manually encourages a person to have fun naturally eneracting, and to enjoy seeing other people and things eneract, especially with a dual pendulum.Once again Mother Nature has been good to us with the gift of pendulums. And thanks to a legion of dedicated pendulum scientists, including Galileo and Newton, we now treasure a wealth of practical, useful knowledge and insight into how precious transfers of energy animate and power our magnificent World.
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Types of Computer Networks
There are different types of Computer Networking that you may need for your home or office. To begin with you have the option of a wired or wireless computer network. These types of networks differ. A wired computer network will have copper or fiber optic cabling running between computers while a wireless network uses radio waves and/or microwaves to maintain communication channels.A client/server network works by using client devices, typically PCs with network software applications installed that request and receive information over the network. The server device will usually store files and databases and includes more complex applications like Web sites. These devices often feature high-powered central processors, more memory and larger disk drives than the client devices. Two examples of client-server systems include Web browsers and servers.In addition to these types of networks there are also types of area networks. These are categorized by their scope or scale. Some area network types include:o LAN
o WAN
o WLAN – Wireless Local Area Network – a LAN based on WiFi wireless network technology
o MAN – Metropolitan Area Network – a network spanning a physical area larger than a LAN but smaller than a WAN, such as a city. A MAN is typically owned an operated by a single entity such as a government body or large corporation.
o CAN – Campus Area Network – a network spanning multiple LANs but smaller than a MAN, such as on a university or local business campus.
o Storage Area Network – connects servers to data storage devices through a technology like Fibre Channel.
o System Area Network – links high-performance computers with high-speed connections in a cluster configuration.LAN and WAN were the original categories of area networks but through the evolution of technology we have been forced to keep adding more and more types due to the ever-changing field.A LAN network will connect devices over a relatively short distance. This may include a building, school, or home that will contain a single LAN. Sometimes one building will contain a few small LANs and on the other hand a LAN may span a group of nearby buildings. A WAN spans a large distance. The Internet is the largest WAN as it covers the Earth. A network device called a router will connect LANs to a WAN. These are typically not owned by any one organization like LANs but are under a distributed ownership and management system.
A Guide to Help You Pick the Best Air Purifier for Your Loved Ones
Holidays are around the corner. This is the time of year when people start purchasing gifts for their loved ones. If you are going to purchase an air purifier for someone you love, we have some helpful tips for you. If you want to purchase the best unit, you may be able to use this guide to your advantage. Read on to find out more.
1: Set Your Budget
Just like anything you purchase, make sure you have set your budget first. The price of the unit will vary based on a lot of factors, such as the capacity, filter type, features, and brand of the unit. If you don’t have a flexible budget, we suggest that you go for a product that is available to purchase for less than $300.
2: Consider the Needs of the Recipient
Your next move is to consider the needs of your recipient. If you are going to purchase this unit for everyday use, we suggest that you go for a unit that comes with a HEPA filter. On the other hand, if your loved one has a specific need, we suggest that you consider a specialized unit.
For example, if they are more prone to respiratory issues, such as allergies and infections, we suggest that you get a UV purifier for them. The devices are designed to neutralize viruses and bacteria.
3: Think About the Available Space
Another primary factor is to consider the available space in the office or house of the recipient. For example, if they need a general-purpose unit for a small apartment, you may want to consider a filterless unit.
On the other hand, if they have plenty of free space, you may consider a bigger unit that features a higher airflow rating. These units are powerful enough to cover a large face.
4: Consider Extra Features
Lastly, we suggest that you consider additional features that they will just love. For example, some units come with an indicator that turns on when the filter needs to be replaced. This will allow the user to change the filter so that the device continues to work properly.
So, you may want to consider these features before you place your order. These features may not be important to you, but your friend may just be over the moon.
Long story short, we suggest that you consider these four tips if you are going to purchase a gift for your loved one on these holidays. Since the air is full of pollution during winter days, nothing can make a better gift than an air purifier. Therefore, you should consider these tips before looking for an online or physical store to make your purchase decision.