Does it seem like there are more spiders around the house right now? And do the spiders you spot seem bigger than those you've seen in recent months? Spider expert, Dr Sara Goodacre, is here with some arachnid answers.
Mr Trump will announce his wider plans for his government in due course, but here are some of the big issues he talked about during the election campaign.
Donald Trump is set to return to the White House as the next president of the US after winning the 2024 election. What do kids in the US think about the results of the election?
Donald Trump wins the US presidential election as his rival Kamal Harris accepts defeat.
More than 1.5 million children across the UK are taking their learning outside this year as part of Outdoor Classroom Day.
In this video, Noam Chomsky talks about language at Google as part of the Authors@Google series.
In this question and answer session he discusses a number of topics, but the first is about universal grammar in which he provides an in-depth description of how his ideas on universal grammar have evolved over time.
Another interesting question he answers at the end of the session relates to the effect of email, instant messaging and the like on syntax and grammar (TXT Speak). Hear Chomsky's views on whether this is just a natural part of the evolution of language and how it's affecting our minds.
At TEDxRainier, Patricia Kuhl shares astonishing findings about how babies learn one language over another -- by listening to the humans around them and "taking statistics" on the sounds they need to know. Clever lab experiments (and brain scans) show how 6-month-old babies use sophisticated reasoning to understand their world.
Title: Idioms- Body 3
Topic: Idioms
Level: Advanced
Information: Choose the correct answer.
Link: https://www.usingenglish.com/quizzes/569.html
Title: Idioms- Animals 2
Topic: Idioms
Level: Advanced
Information: Choose the correct answer.
Link: https://www.usingenglish.com/quizzes/573.html
Title: Idioms- Furniture and Household Fittings
Topic: Idioms
Level: Advanced
Information: Choose the correct answer.
Link: https://www.usingenglish.com/quizzes/576.html
Title: Idioms- Sport 2
Topic: Idioms
Level: Advanced
Information: Choose the correct answer.
Link: https://www.usingenglish.com/quizzes/583.html
Title: Idioms- Work
Topic: Idioms
Level: Advanced
Information: Choose the correct answer.
Link: https://www.usingenglish.com/quizzes/584.html
To be clear from the very beginning of this article, there is no standard model for wiring low voltage switchboards and panelboards. However, for the wide variety of installations and ranges of power ratings, there are local work practices, regulations... Read more
The post Dos, don’ts and precautions in wiring cables and conductors inside low-voltage switchboard appeared first on EEP - Electrical Engineering Portal.
This technical article discusses twelve different methods for laying high voltage cables. Out of the ten, four are deemed conventional and eight are deemed progressive. Many various utilities and companies all across the globe are making use of them, though... Read more
The post Twelve high voltage cable construction techniques used worldwide appeared first on EEP - Electrical Engineering Portal.
I wanted to tell you about a service I recently discovered called Glean.
Glean searches the web for educational videos (lessons) in math and science and then structures and organizes them (setting, pace, teaching style, grade level, etc.), tags them by educational standard and adds interactive tools, i.e. Q&A and practice exercises.
As you provide feedback, Glean selects the best video lessons for you based on your learning styles and preferences.
| Glean - Exploring the best video lessons in education |
The CareerTech Testing Center (CTTC) works closely with instructors,
industry representatives and credentialing entities to identify and
develop assessments and assessment preparation materials that are
aligned with recognized industry standards.
| Follow us on Twitter! @CareerTechTest |
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Educational Technology and Mobile Learning provides a list
of some of the best iPad apps curated for learning and instructional
purposes.
The list is divided into 19 sections with each containing a list of
apps for a specific need. The sections include apps that facilitates:
Architects of development houses usually select the locations for switches, receptacles, and luminaires at a quality and price level determined by the builder. However, purchasers of architect-designed, custom-built homes usually have an opportunity to decide on the selection of luminaires... Read more
The post Guidelines To Residential Room Lighting appeared first on EEP - Electrical Engineering Portal.
New Lesson Plans Entry: 'Things to avoid in IELTS Listening giving reasons practice' has just been added to the Lesson Plans area of UsingEnglish.com.
New Lesson Plans Entry: 'Things to avoid in IELTS Academic Writing Task 1 giving reasons practice' has just been added to the Lesson Plans area of UsingEnglish.com.
Electrical systems normally use current and voltage transformers for protection and measurement purposes. They represent the power system’s eyes and ears, and it’s essential to fully understand how they work, how to make the correct specification and most importantly, the... Read more
The post What steps should be taken to avoid choosing the incorrect current and voltage transformers? appeared first on EEP - Electrical Engineering Portal.
This article addresses the Variable Frequency Drive (VFD) concept in several aspects that matter the most in selecting the proper VFD for applications. One of the important factors is the control type required for a given application since it is... Read more
The post Guidelines for selecting the proper Variable Frequency Drive (VFD) for motor applications appeared first on EEP - Electrical Engineering Portal.
Proper analysis of the VFD’s power and control circuit diagrams is essential for successful troubleshooting. But before starting any analysis, you must know how your system connected through VFD works and how it breathes. You must also know all components... Read more
The post Inside Variable Frequency Drive (VFD) Panel: Configuration, Schematics and Troubleshooting appeared first on EEP - Electrical Engineering Portal.
– Array Size: 10, 12-volt, 51-watt modules; Isc= 3.25 amps, Voc= 20.7 volts – Batteries: 800 amp-hours at 12 volts – Loads: 5 amps DC and 500-watt inverterwith 90% efficiency. The PV modules are mounted on the roof. Single-conductor cables... Read more
The post Calculation Example of Small Photovoltaic (PV) Residential Stand-Alone System appeared first on EEP - Electrical Engineering Portal.
Researches so far shows that, by 2020, around 20% of the total energy production worldwide will be generated from renewable energy. But the major problem with the standalone system is that the sources are not continuous. This intermittent nature of... Read more
The post Low voltage ride through in grid connected hybrid renewable energy systems appeared first on EEP - Electrical Engineering Portal.
The present electric grids use the technology of 1970’s. But with the advancement in various concepts of power generation, problems associated with power outages and thefts, and also due to increase in demand, we require a modernized grid to avail... Read more
The post An Overview Of Smart Power Grid appeared first on EEP - Electrical Engineering Portal.
Network planning Power electronics (HVDC/FACTS) Bulk renewable integration Energy Management System (EMS) Smart substation automation and protection Integrated Substation Condition Monitoring (ISCM) Communication Solutions Distribution Management System (DMS) Distribution automation and protection Distributed Energy Resources (DER) Decentralized Energy Management System... Read more
The post Smart Grids and The New Age of Energy appeared first on EEP - Electrical Engineering Portal.
Modernization of the grid will increase the level of personal information detail available as well as the instances of collection, use and disclosure of personal information. Instead of measuring energy use at the end of each billing period, smart meters... Read more
The post Are you concerned about your privacy in Smart Grid? appeared first on EEP - Electrical Engineering Portal.
Severe weather is the single leading cause of power outages in the United States. Outages caused by severe weather such as thunderstorms, hurricanes and blizzards account for 58 percent of outages observed since 2002 and 87 percent of outages affecting... Read more
The post Billion Dollar Storms vs U.S. Electric Grid appeared first on EEP - Electrical Engineering Portal.
The creation and delivery of power is one basic infrastructure expected by all modern industrial societies. Power distribution basics started in the US in the early 1900s when the first AC grid was established. Since 12 independent power grids were... Read more
The post Comparison of major power grid failures in US and around the world (1) appeared first on EEP - Electrical Engineering Portal.
Continued from first part: Comparison of major grid failures in United States and around the world (part 1) On the International side, about 1/5 of the power outages (9 of 44) were not given a cause in the reports. A... Read more
The post Comparison of major power grid failures in US and around the world (2) appeared first on EEP - Electrical Engineering Portal.
From a communication point of view, each system plays the role of either supplier or consumer of information, or more typically both. In addition to this intersystem communication, these systems consist of subsystems with specific internal communications. The following paragraphs... Read more
The post Conceptual Model of Smart Grid Framework by IEC appeared first on EEP - Electrical Engineering Portal.
Power utilities use telecommunication systems either as a support for grid assets’ operation or as the enabler for voice communications among operating staff. The main objective of utility telecommunications is to connect remote premises and staff with central premises and... Read more
The post Five telecommunication systems embedded in smart grid applications and services appeared first on EEP - Electrical Engineering Portal.
Wastewater pumping stations are very common application examples of three-phase induction motors. There are numerous varieties of power supply and control logic, depending on exact conditions in the place of installation, the role of the pumping station inside a sewer... Read more
The post Design and control considerations for an example of the waste water pumping station appeared first on EEP - Electrical Engineering Portal.
Hello, hope all is well with you! It’s our pleasure to share with you two Cyber Monday deals for our new electrical engineers, expiring on December 3rd: 20% on EEP Pro Premium Membership and 30% off on all courses and... Read more
The post Your Cyber Monday in EEP! Save Big on Premium Membership and Video Courses appeared first on EEP - Electrical Engineering Portal.
As part of our announcement that we have entered a global partnership with MasterCard, Masabi’s Head of Innovation Ben Whitaker and MasterCard’s Head of Transit Centre of Excellence sat down to explain why we believe working together will help customers get around cities and how this benefits transit operators. If […]
The post Masabi and MasterCard Partnership Video appeared first on Masabi.
This approach assumes retrofitting and upgrading old substation secondary equipment such as intelligent electronic devices (IEDs), monitoring sensors, power apparatus, communication protocol and operating standards to improve the overall performance or reduce cost without disrupting the continuity of service. For... Read more
The post Secondary equipment you should always consider when retrofitting existing HV substation appeared first on EEP - Electrical Engineering Portal.
Acquiring the skill to operate a nuclear reactor bears resemblance to acquiring the skill to pilot an aircraft. The majority of airplane pilots rapidly acquire proficiency in performing take-offs and landings. The process that requires significant time and exertion, particularly... Read more
The post What can go wrong with the nuclear power plant in the case of a grid loss: What to do? appeared first on EEP - Electrical Engineering Portal.
The Substation Automation Systems, often known as SASs, are responsible for a tremendous variety of tasks. These include some extremely important actions, such as clearing faults in a timely manner in order to maintain the physical condition of power system... Read more
The post The true art of control, monitoring and protection provided by Substation Automation Systems appeared first on EEP - Electrical Engineering Portal.
Every nation has numerous vital facilities that are largely dependent on electricity to function. Infrastructures that are critical to a quick response to outages include the public health system, the communications sector, and government services like emergency first responders. Nonetheless,... Read more
The post How (should) power utilities handle grid failures by utilizing mobile substations appeared first on EEP - Electrical Engineering Portal.
In the world of electrical engineering, ensuring the safety and reliability of power systems is paramount. A critical aspect of this is the proper implementation of earthing and bonding systems. This article delves into the fundamental concepts and applications of... Read more
The post Handy earthing guidelines for true engineers appeared first on EEP - Electrical Engineering Portal.
Since the subject of this article is somewhat not-that-easy to understand, I suggest starting with the basics of the synchronous motor. In the synchronous motor, the basic magnetic field is obtained by direct current excitation rather than through the air... Read more
The post The art of achieving synchronous motor transient stability (especially in weak grids) appeared first on EEP - Electrical Engineering Portal.
General recommendation is to properly design and implement the facility’s grounding system to avoid unwanted involvement of ground loops with the operation of the equipment. This kind of approach can also eliminate the need to consider equipment modifications and to... Read more
The post 8 tips to avoid ground loops when dealing with signal level circuits appeared first on EEP - Electrical Engineering Portal.
There are at least two safety requirements that medium-voltage switchgear MUST fulfil: an interlocking system and an arc protection system. Yes, these two systems are crucial in terms of safety because they protect not only the operator and other substation... Read more
The post Switchgear interlocking system and arc protection that you MUST consider in the design appeared first on EEP - Electrical Engineering Portal.
When we talk about the power system, there are dozen of essential terms and definitions. One of the most important is for sure that any AC power system begins with a generating source. Electric generators are devices that convert energy... Read more
The post The essentials of power-generation systems you MUST know in the middle of the night! appeared first on EEP - Electrical Engineering Portal.
Yes, many of today’s power grids are very sophisticated and automated. Every single event and piece of equipment is tracked, controlled, measured, and protected. But things aren’t as bright as it seems. As we can see, it turns out that... Read more
The post Automated, but hackable. Is power grid in your country safe from cyberattacks? appeared first on EEP - Electrical Engineering Portal.
Great competition for KS3 students based on the second Wimpy Kid film, Diary of a Wimpy Kid 2: Rodrick Rules offering great prizes, plus teaching ideas and online clip activities
