Technology

Never... but i guess if you think it can happen it will be today because they would have traveled back into time there for the technology is here now .... i say they traveled back into time because the future is what you make it and if you skip it to get to it then nothing has happen so there would be no future...

Cladistic taxonomy groups organisms based on shared evolutionary history, while traditional taxonomy categorizes organisms based on overall similarity in their physical traits. Cladistic taxonomy aims to reflect the evolutionary relationships among taxa, while traditional taxonomy focuses on grouping organisms based on observable characteristics. Cladistic taxonomy provides a more objective and predictive framework for understanding evolutionary relationships compared to traditional taxonomy.

in chemistry the term au could stand for gold (from the Latin 'auris')

A battery contains a charge of electrons. When these electrons leave the battery and travel through a circuit that is described as current.

Windows, or infrared cameras.

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Independent endorsement:

The answer is certified to be 100% accurate, except that infrared cameras

can't see through walls, and neither can police.

mountains, thus proposing the theory of uniformitarianism to explain the formation of geological features on Earth.

Yes, a surfactant can be thought of as a soap. There are two ends, one which is a hydrocarbon and one which is a salt. The hydrocarbon end tends to be soluble with oils and other organic chemicals which will not dissolve in water on their own, and the salt end is soluble in water. In this way, it allows oils and greases to be cleaned using water, which will typically not dissolve either (think of dishwashing liquid).

Every planet's year is longer than 365 days except for Mercury and Venus. Earth's year is aproximately 365.25 days, people just combined them for an extra day every 4 years.

The mother board is a piece of fiberglass upon which you mount the basic pieces of your computer. It is (usually) a printed circuit board, and contains a minimum of the master clock and the CPU. All else is optional, but may well be everything that makes up your computer except the keyboard, the monitor, and the power supply.

Blizzards are forecasted by low temperatures usually below 20* F. and winds that are 35 miles per hour or more. Also falling or lowing snow in the air that often reduces visibility to 1/4 mile or less for at least 3 hours.

No, Stephen Hawking was a renowned theoretical physicist and cosmologist. He had amyotrophic lateral sclerosis (ALS), a progressive neurological disease that left him paralyzed, but he used a wheelchair and a speech synthesizer to communicate. He was a human being, not a robot.

Fire came first, as it is a naturally occurring phenomenon that can be produced through various means such as friction, lightning, or combustion. The mythical creature known as the Phoenix, which is said to be reborn from its ashes by fire, is a product of human storytelling and mythology.

When a liquid turns into a gas, it absorbs heat from its surroundings, making the surroundings feel cold. This absorption of heat allows the particles in the liquid to gain enough energy to escape into the gas phase.

Perhaps a data point, or a cell if on a spreadsheet.

If you're running windows XP the fastest way to go is, double click on the time in the bottom right corner and the Date and Time properties windows will open, there are 2 tabs, click on the one that says Time zone and you'll see a drop down menu, just select the time zone that you want.

Byes.

Rainfall typically occurs when the skies are overcast and cloud cover is heavy. Rain is more likely to fall with lower temperatures and higher humidity levels.

iodine is a chemical similar to chlorine, an iodine attack would work in the same way as mustard gas was used in ww1. btw mustard gas is beyond horrible, if u got a weak stomach don't google dat stuff.

Electron microscopes fire a beam of electrons at a target, then measure exactly how they are reflected. (electrons exist as particles & waves) A computer then generates an image from the data recieved.

Also, cheese.

Yes, water freezes at 0°C. When the temperature drops below this point, water will begin to form ice crystals and solidify.

Penetrant inspection should be performed by a certified NDT (non-destructive testing) laboratory by a certified (Level II or III) inspector. There are many criteria for succesfully passing Penetrant Inspection. This type of test is usually performed in accordance with some kind of industry standard usually specified on an engineering drawing or blueprint.

Just look up NDT or non-destructive testing laboratories in your area and they should be happy to answer more detailed questions.

I assume you're familiar with the big bang theory - the proposition that the universe started as a single point and then "exploded." This theory is often misinterpreted and causes the confusion you have now.

The universe didn't explode from a single point. The entirety of the universe is pushing itself away from everything else.

Imagine the universe as the surface of a balloon. Take a marker and mark a number of points close to each other on that balloon (say, an inch apart). Now inflate the balloon. Every point on the surface of the balloon expanded away from every other point without a distinct center. Of course the balloon's surface is a two-dimensional universe, while our universe is three, but it's a good demonstration.

The unit for measuring radio waves, the hertz (Hz), is named after German physicist Heinrich Hertz, who made significant contributions to the study of electromagnetism and radio waves in the late 19th century.

The speed of sound does not travel.

In the event that an airplane's airspeed is below Mach-1, the speed of sound is faster

than the speed of the airplane.

On the occasion and at the moment when the true indicated airspeed of an airship or

an airplane is in excess of Mach-1, the airplane is at that time traveling faster than the

speed of sound.

There are two things going on here. The first thing is that if you look at most "black light" bulbs when they're on you'll see they're not actually black, they're purple. When you shine a purple light on a white object, it looks purple. This is the dull purple color that some white objects have under black light. Many white articles of clothing, though, shine a fairly bright purple (in many cases it's more of a bluish color). Underwear is particularly good at this (which may be either embarrassing or exactly the effect you were going for, depending on your personal sense of fashion). In this case, what's happening is: laundering. Many fabrics yellow slightly over time, making them appear dingy. To counteract this, detergent (and sometimes bleach) manufacturers include "whiteners" in their formula. These work not by removing the yellow, but by adding blue... a fluorescent compound is included which raises the intensity in the blue region of the spectrum, and when you mix blue light with yellow light you get what your eye perceives as white. Under "black light" these fluorescent compounds go nuts, and since the visible light level is pretty low, the blue light they emit can be clearly seen, in many cases even if there's another layer of clothing on top of the white ones.

Tin is used in solder because it has a low melting point, making it easy to work with. It also creates strong bonds with other metals, serving as a reliable connector in electronic applications. Additionally, tin helps prevent the formation of oxides on the metal surfaces being joined.