0
Time
This category is for questions about the methods humans go about measuring the passage of time. You can also find questions about converting one unit of time to another.
9,512 Questions
When do the perseids come out?
In order to see meteors, you have to be outdoors, under a clear sky, at night. It also helps if you can get away from the lights of a city, out in the country where you see a lot of stars. The peak of the Perseids has passed, but a few will be visible during Wednesday night, August 12 - 13.
How long does it take a tree to respire 1 ton of co2?
2/3 of dry wood is carbon. The carbon came from carbon dioxide. Trees grow at different rates so you need to find out fast it grows to answer the question.
Say the tree adds a ton of dry wood in 1 year (1 Ton Wood/Yr). That locks up 0.667 ton of carbon. The carbon came from CO2 which is 0.375 carbon by weight.
Cross-multiply and divide...solve for X:
1 Ton CO2 / 0.375 Ton CO2 = X Ton Wood / 0.667 Ton Wood
X = 1.77 Ton Wood
Divide by the rate and you get the time:
1.77 Ton Wood / 1 Ton Wood/Yr = 1.77 Yr
In scientific units of measure what does the scientific abbreviation Ma stand for?
The scientific abbreviation "Ma" stands for Mega-annum, which is equivalent to one million years. It is commonly used in geology and paleontology to represent timelines on a large scale.
What is the melting point of stainless steel welding filler rod?
The melting point of stainless steel welding filler rod can vary depending on the specific grade of stainless steel being used. Typically, stainless steel filler rods have a melting point ranging from 2,500 to 2,800 degrees Fahrenheit. It is important to refer to the manufacturer's specifications for the exact melting point of the specific stainless steel filler rod being used.
Is a nanosecond one millionth of a second?
No, a nanosecond is one billionth of a second, not one millionth.
How is second in time defined?
sometimes abbreviated sec., is a unit of measurement of time, and is the International System of Units (SI) base unit of time.[1] It may be measured using a clock.
Early definitions of the second were based on the apparent motion of the sun around the earth.[2] The solar day was divided into 24 hours, each of which contained 60 minutes of 60 seconds each, so the second was 1⁄86 400 of the mean solar day. However, 19th- and 20th century astronomical observations revealed that this average time is lengthening, and thus the sun/earth motion is no longer considered a suitable basis for definition. With the advent of atomic clocks, it became feasible to define the second based on fundamental properties of nature. Since 1967, the second has been defined to be
the duration of 9,192,631,770 periods of the radiation corresponding to the transition between the two hyperfine levels of the ground state of the caesium 133 atom.[1]
SI prefixes are frequently combined with the word secondto denote subdivisions of the second, e.g., the millisecond (one thousandth of a second), the microsecond (one millionth of a second), and the nanosecond (one billionth of a second). Though SI prefixes may also be used to form multiples of the second such as kilosecond (one thousand seconds), such units are rarely used in practice. The more common larger non-SI units of time are not formed by powers of ten; instead, the second is multiplied by 60 to form a minute, which is multiplied by 60 to form an hour, which is multiplied by 24 to form a day.
The second is also the base unit of time in the centimetre-gram-second, metre-kilogram-second, metre-tonne-second, and foot-pound-second systems of units.
Why night is 4 minutes shorter than day?
Depending on where on Earth you are, and what the date is, your night may be
longer or shorter than your day, by any number of minutes. Your day or your
night also may be more than 24 hours long, and can even be 6 months long.
It just depends on where you are, and the time of year.
Is there any relationship between light and time?
In special relativity there is a relationship between light and space and time, or more properly light and spacetime. As the speed of light as defined in Maxwell's equations is determined to be a constant regardless of motion of source or observer, spacetime must warp in a certain way (time dialation & space contraction in the direction of observed motion) to maintain meaningful measurements that agree in a sensible way between reference frames having different motion. Using the right relationship, despite changes in measured rate of time and lengths in space between observers in different frames they can all get the same values for intervals between events.
With distances measured in meters and time measured in meters of light travel time, the interval in meters is:
I = √( X2 + Y2 + Z2 - T2 )
What are the factors affecting the use of time and energy?
Time is caused by a particle that I discovered, the Graviton. Graviton particles orbit all atoms & create gravity & inertia by simply bumping into everything.
Gravitons have a constant & predictable velocity that exceeds 10,000 times the speed of light. An alarm clock, for example, has a part called the escapement which measures inertia and graviton impacts. If you take your alarm clock to the Moon for example, it will run way too fast because there are 5/6 ths fewer graviton impacts on the Moon.
The use of any energy that is affected by inertia will speed in the same way....Alfred Schrader
Your 65 milliseconds is 65 thousandths of a second, or 0.065 seconds, or 65/1000 seconds. One 20th (1/20th) of a second is 0.050 seconds, so this is a bit longer. A millisecond is one one thousandth (1/1000th) of a second.
What is the difference time between Philippines and Taipei?
The time difference between the Philippines and Taipei is one hour, with Taipei being one hour ahead of the Philippines.
How is the fourth dimension the time?
The fourth dimension is not "time'. The fourth dimension is a real space dimension r=ct, where c is the speed of light and the fourth dimension r is the product of 'c' and time which gives a real number distance. The other three dimensions are vector dimensions V= Ix + Jx + Ky. The vectors I, J and K are unit vectors with the vector property I2=J2=K2=IJK= - 1.
So, all the dimensions are units of space!
SI units for time length speed and velocity?
SI units:
time:second
length: meter
speed:meter/second
velocity:meter/second.
What number do you call to get current time?
From what I know "123" is the number you call to get the time.
What is faster 210 nanoseconds or 2 nanoseconds?
Same answer as if you replaced the word "nanoseconds" with the word "years".
Let me show you how to do it:
What is faster, 210 years or 2 years ?
Now can you guess ?
How many nanoseconds are in a megayear?
There are 3.1536 x 10^16 nanoseconds in a megayear, which is equivalent to one million years.
Who tried to build a time machine?
One famous person who tried to build a time machine was H.G. Wells, a British writer who wrote "The Time Machine" in 1895. The protagonist in his novel invents a machine that allows him to travel through time.
If its 10pm in the US what time is it in Norway?
If it's 10 pm in the US, it would be 4 am in Norway. Norway is 6 hours ahead of Eastern Standard Time in the US.
