The Science Quiz | Our universe, through time

The Crab Nebula, the stays of an exploded star 6,500 light-years away, is seen in a composite picture taken by the James Webb Telescope and launched by NASA on October 30, 2023.
| Photo Credit: Reuters

Questions:

1. The quectosecond is among the shortest items of time — equal to 10-30 seconds — that has a reputation. But physicists have a unit known as ______ ____, equal to roughly 10-44 seconds. This unit of time is derived fully from this universe’s elementary constants, and no current concept of nature can describe occasions that occur in lower than this length. Fill within the blanks.

2. A laser is a lightweight supply the place the power comes from sure particles or atoms. For instance, in a handheld laser you get in stationery outlets, this supply is atoms. In an electron laser, the supply is power misplaced by a gaggle of electrons. The shortest pulse from an electron laser produced up to now is 53 __. Fill within the clean with the unit of time equal to 10-18 seconds, and which was associated to the 2023 physics Nobel Prize.

3. One impact of X is time dilation: time passes sooner, as measured by a clock, if the clock is in a spot of stronger gravitational potential (e.g. nearer to an enormous physique). Scientists have been capable of estimate that on account of X, one second on the earth is definitely one second plus 696 picoseconds in a spot the place the gravitational potential because of the earth is absent. What is X?

4. In pc science, Unix time is a measure of the quantity of time that has elapsed since 12 am UTC on _______ _, ____, minus leap seconds. At 8.10 am IST on July 14, 2017, totally 1.5 gigaseconds had handed since. Fill within the blanks with the date on which Unix time begins.

5. After about three zettaseconds, the universe’s ____________ period is anticipated to finish and mark the beginning of the degenerate period, by which no new stars can be born. Fill within the clean.

Visual:

Name this metalloid aspect. One of its isotopes, of atomic mass 128, has the longest half-life (i.e. the time to which it can decay radioactively to half its mass): about 69 quettaseconds. CHEMICAL ELEMENTS – A VIRTUAL MUSEUM

Answers:

1. Planck time

2. Attoseconds

3. General concept of relativity

4. January 1, 1970

5. Stelliferous period

Visual: Tellurium