The Sciencfic Leader

A jammer is an RF emitter, usually emitting wide band noise at an high power level, that serves to overpower other RF signals with lower power level in that band, and thus the jammer prevents the receivers in its vicinity to receive those low power radio emissions. With very high power levels, it eventually can overpower the RF emmitters nearby and so in this case it "smashes" the radio emissions at its bare source. Jamming devices overpower the cell phone by transmitting a signal on the same frequency and at a high enough power that the two signals collide and cancel each other out also known as phenomenon of destructive interference. A jammer is also defined as a device that is used to block signals by jamming Bluetooth or wireless signals for cell phones, GPS signals, and Wi-Fi systems. Jammers flood a specific area with noise that covers the radio bands to be jammed. Jammers can be used for many reasons, such as preventing unwanted calls from telemarketers; as well a...

We have understanding to this virus and their effects to our life but COVID19 can be a difficult thing for children to understand. They are watching it on the news. They hear about it in the schoolyard. They may see people in their neighbourhoods wearing medical masks. Given how scary or confusing it can be for young children, it is important that parents know how to talk to them about COVID19 or Novel Corona Virus. First of all try find what they know about the virus and what they’ve heard at school or from friends, and what they understood from News and all other sources. Explain to them that the coronavirus is a germ, and because it is a new germ and spread among one person to another person, It's spreading in form of droplet out from the infected to others, thats why we all are very protective and are taking it very seriously. Tell them what are the symptoms and what should they look out for – coughing, fevers and breathing trouble. Tell them all about the p...

On heavy demands of my dear friend, I am listing some of the free certification courses, online sessions and trainings for the professionals and students of #HSE (#Health, #Safety & #Environment). 1. 30 HSE courses by International Association for Chemical Safety https://lnkd.in/gjHC4-B 2. ICPA course ConnectOSH :https://bit.ly/2S455Js 3. 5 courses by Center for occupational safety and health http://www.ccohs.ca/ 4. Safety Quiz and Certification https://lnkd.in/gkyTG7Q 5. DSE workstation assessment course https://lnkd.in/f63GFGf 6. Health System Strengthening- UNICEF. Futurelearn.com 7. Various HSE courses by World Health Organization https://lnkd.in/ftB97xE 8. #Fire and Safety courses from International labour organization. https://lnkd.in/giMpnFh 9. Explosion Protection course krohne academy. https://lnkd.in/gsWau82 10. Health and Safety courses https://lnkd.in/g32ehkn We hope this information is useful to you. Kindly share this information to ...

Many of my dear friend asked me to tell me the way to earn money during this lockdown while we all are setting at home. I appreciate your affert that you are utilised your time, be at  home earn money and stay safe. 1 .Get  paid to write online If you’ve always wanted to be a writer, what better time to start than during lockdown? While a lot of online writing jobs don’t pay, there are still quite a few websites where you can make money by creating high quality, relevant content. You can get started by looking at: Listverse : a listicle website that will pay $100 per accepted article. Longreads:  a long-form content site that pays competitive rates. The website doesn’t specify the amount paid but other websites and blogs have stated rates of $500-$1,500. Back2college : a site aimed at older students will pay $55+ per accepted article. All Pet Voices : a pet website that pays $75 per accepted article. iWorkWell : a website ...