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Topics - Md. Abrar Amin

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EEE / 5 ways to Celebrate Earth Day-9
« on: April 22, 2017, 04:00:41 PM »

Plant trees. As the date of Earth Day roughly coincides with U.S. Arbor Day, planting trees is a popular Earth Day activity. Trees helps to reduce greenhouse gas emissions, clean pollution, secure soil in place to prevent erosion, and provide homes for many birds, insects and other animals. There's almost no more important, long-lasting act you can do to celebrate Earth Day.
Pick a tree that you know can survive in your climate. It's best to find a species native to where you live. If you're unsure about what that might be, ask an employee at your local garden shop, or inside the garden department of a big-box store.
To ensure that the tree grows tall and strong, make sure you plant it correctly. Choose the correct planting spot to meet its needs, dig a properly-sized hole, and water the tree well to give it a good start.

EEE / 5 ways to Celebrate Earth Day-8
« on: April 22, 2017, 04:00:12 PM »
Remember that every day is Earth Day. Anything to help our environment is a perfect thing to do on Earth Day and every day. Don't restrict yourself to just one day a year; learn about how you can make a difference to environmental protection all the time. It's going to take a lot of work to heal our planet. Leading by example will help others remember that the earth is important every day of the year.

EEE / 5 ways to Celebrate Earth Day-7
« on: April 22, 2017, 03:59:53 PM »

Cook a special Earth Day meal. Invite friends and family over for a meal, and plan a menu that uses locally produced foods, is healthy and has minimal impact on the environment. Favor vegetables, fruit and other produce, as these use less resources to grow than mass-farmed meat. If you still would like meat, look for locally produced, organic meat. Try to have organic food completely.
To decorate for the meal, use recycled decorations made by you and your friends instead of buying brand-new decorations.
When you wash up after the meal, use the low-water dishwashing method. Teach those who are helping how to use it, too.

EEE / 5 ways to Celebrate Earth Day-6
« on: April 22, 2017, 03:59:34 PM »

Enjoy Earth Day entertainment. There are many Earth Day song lyrics available on the Internet. Most follow well-known tunes so people can easily sing along. These make a fantastic classroom activity and help younger children to become interested in environmental topics. iTunes has many songs about the Earth for downloading: try searching for words such as "planet", "Earth", "endangered", "pollution" etc.

EEE / 5 ways to Celebrate Earth Day-5
« on: April 22, 2017, 03:59:15 PM »
Go to an Earth Day fair. Maybe your school, your street, or your local neighborhood is holding an environmental fair. If your community doesn't have one planned, consider starting one yourself. It's the perfect day to get together for a fun and educational celebration of the earth. Money raised can go towards a local environmental restoration project or to an environmental group agreed upon by all the participants running the fair. These offerings are common at Earth Day fairs:
Demonstrations of environmentally-friendly products
Children's earth-themed artwork
Healthy/locally grown foods to eat
Animal care demonstrations (including wildlife rescue)
Games for the children made of recycled products
Musicians and actors performing environmental music and skits
Stalls for recycling unwanted treasures and books
Local environmental organizations presenting their issues and wares.

EEE / 5 ways to Celebrate Earth Day-4
« on: April 22, 2017, 03:58:52 PM »
Spread the word. Everyone has environmental knowledge they can share with others. Just talking about the environment with people who may not think about it that much is a good way to celebrate Earth Day. Talk to your parents, friends, teachers, siblings, and anyone else you'd like about the issues you care about most. Here are a few ways to educate others about the earth:
Give a speech at your local library on how to compost with worms
Take a group of children down to the recycling center to show them how things are recycled
Recite nature poems in the park
Offer to teach your office colleagues how to make environmentally-friendly choices at work during lunch hour
Encourage people to respond and if they have no opinions or they seem to not know much, help them learn some more by imparting your environmental knowledge in a friendly and helpful manner.
Get a group of friends to wear green and brown. When people ask you why you're dressed like a tree, take the opportunity to talk about Earth Day.

EEE / 5 ways to Celebrate Earth Day-3
« on: April 22, 2017, 03:58:22 PM »
Join an environmental group. Think about the issues that concern you the most and if you haven't done so already, join a local group that undertakes activities to help protect the environment in your area. Earth Day is a great day to start getting involved. In almost any community, you'll find local groups that do the following:[6]
Host clean-ups of local bodies of water and their shores
Fight air and water pollution
Plant trees and install community gardens
Protect habitats under threat of getting developed
Can't find a group? Consider starting your own.

EEE / 5 ways to Celebrate Earth Day-2
« on: April 22, 2017, 03:57:58 PM »
Learn more about the environment. Earth Day is a good time to make a commitment to learning more about the environment and how you can help to protect it. Read articles to get up to date on the current issues affecting the environment, like pollution, water shortages, and climate change. Or, learn about a region you've never considered before, like the Arctic, the deserts, or the rain forests. Not sure where to start? Check out your local news sources for information about environmental issues in your own backyard.
Understand how climate change works, and what you can do about it.[1]
If you live in a city, look into urban environmental issues like contaminated drinking water and energy conservation.[2]
If you live near a body of water, do research to find out whether it's healthy or in need of help.[3]
Learn more about fracking, which is affecting many communities in the United States.[4]
Find out which species native to your area are under threat of extinction.

EEE / 5 ways to Celebrate Earth Day-1
« on: April 22, 2017, 03:56:35 PM »
The celebration of Earth Day is on April 22nd and it began 1970. It has grown into a global event recognized by over 192 countries. Devoting special a day to helping for the earth is a way to demonstrate how much we care about the future of our planet. No matter what you like to do best, there's a way to get involved in Earth Day. You could plant a tree, make a meal with locally-grown vegetables, educate a family member, clean up trash in your neighborhood, set up a bird feeder or save power — the possibilities are endless. Remember, you don't have to wait for Earth Day to show your love for the planet we call home.

Latest Technology / LittleDog - The Legged Locomotion Learning Robot
« on: April 22, 2017, 03:53:52 PM »
LittleDog is a quadruped robot designed for research on learning locomotion. Scientists at leading institutions use LittleDog to probe the fundamental relationships among motor learning, dynamic control, perception of the environment, and rough-terrain locomotion. LittleDog is used at MIT, Stanford, Carnegie Mellon, USC, Univ. Pennsylvania and IHMC as part of a DARPA-funded program on advanced robotics.
LittleDog has four legs, each powered by three electric motors. The legs have a large range of motion. The robot is strong enough for climbing and dynamic locomotion gaits. The onboard PC-level computer does sensing, actuator control and communications. LittleDog's sensors measure joint angles, motor currents, body orientation and foot/ground contact. Control programs access the robot through the Boston Dynamics Robot API. Onboard lithium polymer batteries allow for 30 minutes of continuous operation without recharging. Wireless communications and data logging support remote operation and data analysis. LittleDog development is funded by the DARPA Information Processing Technology Office.

Latest Technology / RiSE: The Amazing Climbing Robot
« on: April 22, 2017, 03:53:16 PM »
RiSE is a robot that climbs vertical terrain such as walls, trees and fences. RiSE uses feet with micro-claws to climb on textured surfaces. RiSE changes posture to conform to the curvature of the climbing surface and its tail helps RiSE balance on steep ascents. RiSE is 0.25 m long, weighs 2 kg, and travels 0.3 m/s.
Each of RiSE's six legs is powered by a pair of electric motors. An onboard computer controls leg motion, manages communications, and services a variety of sensors, including joint position sensors, leg strain sensors and foot contact sensors.
Boston Dynamics developed RiSE in conjunction with researchers at University of Pennsylvania, Carnegie Mellon, UC Berkeley, Stanford, and Lewis and Clark University. RiSE was funded by DARPA.

Latest Technology / RHex - Devours Rough Terrain
« on: April 22, 2017, 03:52:16 PM »
RHex is a six-legged robot with inherently high mobility. Powerful, independently controlled legs produce specialized gaits that devour rough terrain with minimal operator input. RHex climbs in rock fields, mud, sand, vegetation, railroad tracks, telephone poles and up slopes and stairways.
RHex has a sealed body, making it fully operational in wet weather, muddy and swampy conditions. RHex's remarkable terrain capabilities have been validated in government-run independent testing. RHex is controlled remotely from an operator control unit at distances up to 700 meters. Visible/IR cameras and illuminators provide front and rear views from the robot.

EEE / SandFlea - Leaps Small Buildings in a Single Bound
« on: April 22, 2017, 03:50:48 PM »
Sand Flea is an 11 pound robot that drives like an RC car on flat terrain, but can jump 30 ft into the air to overcome obstacles. That is high enough to jump over a compound wall, onto the roof of a house, up a set of stairs or into a second story window.
The robot uses gyro stabilization to stay level during flight, to provide a clear view from the onboard camera, and to ensure a smooth landing. Sand Flea can jump about 25 times on one charge. Boston Dynamics is developing Sand Flea with funding from the US Army’s Rapid Equipping Force (REF).
Earlier versions of Sand Flea were developed by Sandia National Laboratory with funding from DARPA and JIEDDO.

EEE / BigDog - The Most Advanced Rough-Terrain Robot on Earth
« on: April 22, 2017, 03:50:19 PM »
BigDog is a rough-terrain robot that walks, runs, climbs and carries heavy loads. BigDog is powered by an engine that drives a hydraulic actuation system. BigDog has four legs that are articulated like an animal’s, with compliant elements to absorb shock and recycle energy from one step to the next. BigDog is the size of a large dog or small mule; about 3 feet long, 2.5 feet tall and weighs 240 lbs.
BigDog's on-board computer controls locomotion, processes sensors and handles communications with the user. BigDog’s control system keeps it balanced, manages locomotion on a wide variety of terrains and does navigation. Sensors for locomotion include joint position, joint force, ground contact, ground load, a gyroscope, LIDAR and a stereo vision system. Other sensors focus on the internal state of BigDog, monitoring the hydraulic pressure, oil temperature, engine functions, battery charge and others.
BigDog runs at 4 mph, climbs slopes up to 35 degrees, walks across rubble, climbs muddy hiking trails, walks in snow and water, and carries 340 lb load.
Development of the original BigDog robot was funded by DARPA. Work to add a manipulator and do dynamic manipulation was funded by the Army Research Laboratory's RCTA program.

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