Sean Ross is a strategic adviser at 1031x.com, Investopedia contributor, and the founder and manager of Free Lances Ltd. Gordon Scott has been an active investor and technical analyst or 20+ years. He ...

Steven Nickolas is a writer and has 10+ years of experience working as a consultant to retail and institutional investors. Thomas J. Brock is a CFA and CPA with more than 20 years of experience in ...

An imaginary police patrol has setup a speed trap in two consecutive days. They have recorded all license plates and speeds to Excel sheets - one sheet per day. Task stores the resulting Excel file to ...

Click on the green "Clone or Download" button and choose 'Download ZIP' from the drop down. Then extract the zip file on your machine to start working with the files. Alternatively, if you have git ...

Business analysts and data scientists today increasingly need to clean, standardize and transform diverse data sets, such as name, address, date time, phone number, etc., before they can perform ...

Hair protects your skin and can renew itself without scarring. A hair has a follicle below the skin, made of live cells, and a shaft above the skin made of dead cells. Hair grows through three phases: ...

Neurons are cells that transmit electrical signals through the nervous system. Motor neurons control muscle activity and movement by carrying impulses from the brain and spinal cord. Sensory neurons ...