Category: Lifehacks

Is there a Battleship game for PC? You sank my battleship! The official version of the classic Hasbro board game of naval combat is now on Steam! Challenge other players in Classic Mode or in the all-new Commanders Mode – a fast-paced, strategic and exciting variation. Are battleships free? Sink your opponent’s battleships in this […]

Will a 20-gauge slug drop a deer? An old rule of thumb is that it takes 1,000 ft-lbs of energy to kill a deer. For example, the Winchester Supreme 2¾” 20-gauge Partition Gold load uses a 260-grain bullet with a muzzle velocity of 1,900 fps and a muzzle energy of 2084 ft lbs. This is […]

How effective is EU competition policy? Undoubtedly, the EU has one of the strongest competition policy systems worldwide. The policy also applies to non-EU companies operating on the single market. Competition has been found to contribute to long-term economic growth. How does competition policy affect businesses? Competition policy is about applying rules to make sure […]

What are vital amines? Funk conceived the concept of “vital amines”; essential nutrients with a specific action, requiring only minute amount with the power to cure a specific disease. As Casimir1 phrased it: “We will speak of beriberi and scurvy vitamine, which means a substance preventing that special disease”. Are vitamins vital amines? From the […]

Who owns Cyberkinetics? Blackrock Microsystems, LLC. In early 2009, Cyberkinetics was acquired by Blackrock Microsystems, LLC. What is Cyber kinetics? Kinetic Cyber refers to a class of cyber attacks that can cause direct or indirect physical damage, injury or death solely though the exploitation of vulnerable information systems and processes. Kinetic cyber attacks are a […]

How many baseball players get hit in the head? The truth is, it’s more likely, but not by very much. (About 1 in 84 die in car crash, vs. 1 in roughly 105 pitchers get hit in the head by a pitch across their MLB careers, although some much smaller percentage are injured in the […]

What is the formula for a low-pass filter? The cut-off frequency or -3dB point, can be found using the standard formula, ƒc = 1/(2πRC). The phase angle of the output signal at ƒc and is -45o for a Low Pass Filter. Is an RC circuit a low-pass filter? In an RC circuit, where the resistor […]

How much horsepower does a 1985 Buick Grand National have? Initially it differed mostly in suspension tuning and full blackout exterior, but further development, including more precise sequential fuel injection, ultimately produced 245 horsepower and 0-60 times of under 5 seconds. In 1984 the Grand National returned in all black paint. How many Grand Nationals […]

Can an eigenvector be 000? Eigenvalues and eigenvectors are only for square matrices. Eigenvectors are by definition nonzero. We do not consider the zero vector to be an eigenvector: since A 0 = 0 = λ 0 for every scalar λ , the associated eigenvalue would be undefined. What does it mean if an eigenvalue […]

How do you give a text box a size in HTML? The size attribute specifies the visible width, in characters, of an element. Note: The size attribute works with the following input types: text, search, tel, url, email, and password. Tip: To specify the maximum number of characters allowed in the element, use the maxlength […]