Central limit theorum is easily one of the most fundamental and profound concepts in statistics and perhaps in mathematics as a whole. In probability theory, the central limit theorum (CLT) states conditions under which the mean of a suffiently large number of independent random large variables (each with finite means and variance) will be normally distributed, approximately. Huh? If you are having trouble understanding central limit theorum and need help trying to solve it, check out this tu...
A conservative vector field is defined as being the gradient of a function, or as a scaler potential. Conservative vector fields are not dependent on the path; they are path independent. Conversely, the path independence of the vector field is measured by how conservative it is. These fields are also characterized as being ir-rotational, which means they have vanishing curls. Actually, ir-rotational vector fields are conservative as long as a certain condition on the geometry of the domain is...
Patty Moreno shows us how to test your pond's PH, and see if the conditions are right for fish. • First get a freshwater PH test kit.
Dog trainer Emily Larlham of Dogmantics, goes over some good clues on how to grab your dog when it's running around loose.
This swim technique video series from a professional swimming coach hones in on the fine details for developing perfect alignment and stroke to help make you a better, more competitive athlete. The coach demonstrates the proper way to use swimming equipment and how to position your body to condition your swimming performace. This series is particularly helpful in that not only is the coaching beneficial, but the drills, including dryland training, are shown in practice. It's the next best thi...
This swim technique video series from a professional swimming coach hones in on the fine details for developing perfect alignment and stroke to help make you a better, more competitive athlete. The coach demonstrates the proper way to use swimming equipment and how to position your body to condition your swimming performace. This series is particularly helpful in that not only is the coaching beneficial, but the drills, including dryland training, are shown in practice. It's the next best thi...
This swim technique video series from a professional swimming coach hones in on the fine details for developing perfect alignment and stroke to help make you a better, more competitive athlete. The coach demonstrates the proper way to use swimming equipment and how to position your body to condition your swimming performace. This series is particularly helpful in that not only is the coaching beneficial, but the drills, including dryland training, are shown in practice. It's the next best thi...
This swim technique video series from a professional swimming coach hones in on the fine details for developing perfect alignment and stroke to help make you a better, more competitive athlete. The coach demonstrates the proper way to use swimming equipment and how to position your body to condition your swimming performace. This series is particularly helpful in that not only is the coaching beneficial, but the drills, including dryland training, are shown in practice on his swim team. It's ...
This swim technique video series from a professional swimming coach hones in on the fine details for developing perfect alignment and stroke to help make you a better, more competitive athlete. The coach demonstrates the proper way to use swimming equipment and how to position your body to condition your swimming performace. This series is particularly helpful in that not only is the coaching beneficial, but the drills, including dryland training, are shown in practice on his swim team. It's ...
This swim technique video series from a professional swimming coach hones in on the fine details for developing perfect alignment and stroke to help make you a better, more competitive athlete. The coach demonstrates the proper way to use swimming equipment and how to position your body to condition your swimming performace. This series is particularly helpful in that not only is the coaching beneficial, but the drills, including dryland training, are shown in practice on his swim team. It's ...
This swim technique video series from a professional swimming coach hones in on the fine details for developing perfect alignment and stroke to help make you a better, more competitive athlete. The coach demonstrates the proper way to use swimming equipment and how to position your body to condition your swimming performace. This series is particularly helpful in that not only is the coaching beneficial, but the drills, including dryland training, are shown in practice on his swim team. It's ...
This swim technique video series from a professional swimming coach hones in on the fine details for developing perfect alignment and stroke to help make you a better, more competitive athlete. The coach demonstrates the proper way to use swimming equipment and how to position your body to condition your swimming performace. This series is particularly helpful in that not only is the coaching beneficial, but the drills, including dryland training, are shown in practice on his swim team. It's ...
This swim technique video series from a professional swimming coach hones in on the fine details for developing perfect alignment and stroke to help make you a better, more competitive athlete. The coach demonstrates the proper way to use swimming equipment and how to position your body to condition your swimming performace. This series is particularly helpful in that not only is the coaching beneficial, but the drills, including dryland training, are shown in practice on his swim team. It's ...
This swim technique video series from a professional swimming coach hones in on the fine details for developing perfect alignment and stroke to help make you a better, more competitive athlete. The coach demonstrates the proper way to use swimming equipment and how to position your body to condition your swimming performace. This series is particularly helpful in that not only is the coaching beneficial, but the drills, including dryland training, are shown in practice on his swim team. It's ...
Chris Barnes, Sean Rash and Kim Terrell make adjustments for changing lane conditions. This bowling lesson demonstrates lane play.
Use a neti pot daily to prevent sinus infections and promote easy breathing. Check out this Howcast video tutorial on how to use a neti pot.
Gardener P. Allen Smith give us some tips on how to care for our lawns during the hot summer months. You need to choose the correct type of grass seed and soil to suit your area and local weather conditions. In the summer, let your grass grow a little longer so that the blades of grass can shade the roots. Watch this instructional gardening video to learn how to maintain a fresh summer lawn, without dumping unnecessary fertilizers onto it or over watering the brittle grass.
Heel spurs are a very painful condition of the foot and occurs over time. Heel spurs often feel like you are walking on a pebble. Deal with the nagging heel spur injury with stretching, foot care and other methods. Learn how to treat sports injuries in this video on health and rehab.
Tibial stress fractures are a very painful condition that have to be treated the right way. Tibial stress fracture treatments and healing methods include rest, stretching and wearing certain equipment. Learn how to treat sports injuries in this how to video on health and rehab.
Keep your RV Entrance Steps in tip top condition with this instructional RV video. This tutorial demonstrates how to maintain and repair your recreational vehicle entrance steps. Most RVs have electric steps, which are fairly maintenance free. The biggest component is lubrication. Make sure to lubricate once every thirty days using a lithium-based grease and spray every point. Learn how to inspect the wires underneath your RV and make sure everything is secure. Just follow the simple steps in...
Flexibility is generally defined as the range of motion of the joints. It is the ability to bend and stretch easily without too much effort. Flexibility depends upon various factors like the state of the joints, muscles, length and looseness of muscles, shape of bones, age etc. Some medical conditions like arthritis can affect flexibility.
Check out this instructional home repair video that shows you a very simple way to clean the condensate drain on your air conditioner. If you follow these simple steps, it could save some money, not to mention the grief. If you have an A/C and have ever experienced a backed up condensate drain, you know what I mean. Avoid this inconvenience by watching this air conditioning tutorial video.
This is a super cool way to learn some science while combating spring break or summer break boredom. This science video teaches you how to boil water at room temperature. Obviously this won't work in the normal conditions in which you boil water. But if you place the water in a vacuum, where the atmospheric vapor pressure is lowered, water can boil at a much lower temperature.
This video series explains how to charge and evacuate the air conditioning system in a vehicle. Lots of machines are involved so you won't be able to do this at home.
Cactus can do very well in containers if attention is paid to several things. One, use terracotta, it breathes well. Also, make sure there is a hole in the bottom because the soil shouldn't be sitting in water. And importantly use a Cactus soil mix, a mix that has a lot of sand, a lot of perlite. Although most plants don't thrive in mixes with a lot of sand, because it dries too fast, Cactus requires this condition. In fact, over watering is the number one way to kill a Cactus. To place the C...
Tim Carter demonstrates how to use recycled cobblestones. Cobblestone can be used to edge gardens, driveways and walkways. These paving stones make a great border.
Confused by TikTok? Trying to grow your Instagram fanbase? Aiming to create the perfect Facebook ad? Growing an audience might be challenging, but with the right strategies, it is possible — and fun.
When Samsung announced its new Super Fast Charging 2.0 system was based on USB PD, the industry rejoiced. By using an open standard, Galaxy users could pick from hundreds of third-party chargers in addition to first-party options from Samsung. Trouble is, this never came to fruition.
In his famous 1996 "Content is King" essay, Bill Gates predicted that content is where tech companies will make money on the Internet. The adage clearly holds true in the current phase of augmented reality experience.
While Apple augmented reality smartglasses are not yet official, the tech giant is ramping up its resources by appointing company veteran Frank Casanova to promote its augmented reality offerings.
Smartglasses maker Epson remains the top gun in the drone market with its Moverio line of wearables, and the company is further elevating its offerings with its new Drone SoAR app for DJI drones.
Modern "mad men" are buying into augmented reality for marketing, with the two latest examples being trendy burger maker Bareburger and department store chain Zara.
Just days after announcing the launch of two new mixed reality studio facilities, Microsoft is extending its mixed reality reach even further with the announcement that the HoloLens will now be offered in 29 new markets.
Cruise Automation, the driverless car startup General Motors (GM) bought for $1 billion in 2016, is readying a formidable fleet of robo-taxis for rollout in cities throughout the US. But when it comes to details about how the company plans to realize these lofty goals, it's been fairly tight-lipped.
Augmented reality sells, but who's buying? Over the past week, two companies made executive hires to capitalize on the growth of augmented reality as a service to sell to other businesses. Meanwhile, two companies joined forces to offer augmented reality tools to headset makers and content providers.
Wherever there are people, the party is sure to follow. Well, a party of microbes, at least. That is what scientists at NASA's Jet Propulsion Laboratory have found after a 30-day microbial observation of the inflatable lunar/Mars analog habitat (IMAH).
Augmented and virtual reality continues to be a hot commodity among tech investors, with more than $800 million invested in AR/VR companies in the second quarter alone and global tech leaders like Samsung focusing their investment strategies on the emerging field.
A new survey shows that the majority of companies have an interest in using augmented reality, though adoption remains low. Meanwhile, two companies with support roles in the augmented reality industry are seeing positive financial results.
The future of forests looks dreary in the face of a warming climate, but scientists are exploring the relationship between soil microbes and the ability of trees to move to higher altitudes, a key component of their survival.
Cancer is a complicated illness, but the more we understand it, the likelier we are to beat it. The 3D Visualisation Aesthetics Lab at the University of New South Wales took to virtual reality to help improve our odds by allowing scientists to walk through virtual representations of actual cancer cells.
