Science anyone?

The Answers to Question:
#4: What causes the most chaos in the Universe? Gravity
#5: On what planet in our Solar System does it snow Nitrogen and Methane? Pluto (While now classified as a Dwarf Planet, to many of us Pluto is just as much a Planet as Jupiter! And will remain so.)

Just for fun, I'm adding one more question.

Define: 9192631770 cycles of a Cesium Atomic Clock / 299792458 cycles of a Cesium Atomic Clock

The Answers to Question:
#4: What causes the most chaos in the Universe? Gravity
#5: On what planet in our Solar System does it snow Nitrogen and Methane? Pluto (While now classified as a Dwarf Planet, to many of us Pluto is just as much a Planet as Jupiter! And will remain so.)

Just for fun, I'm adding one more question.

Define: 9192631770 cycles of a Cesium Atomic Clock / 299792458 cycles of a Cesium Atomic Clock

The time it takes for light to travel one meter.

Blame Neil deGrasse Tyson for demoting Pluto to a Dwarf Planet along with Ceres, Haumea, Makemake, and Eris.

Please cite a reference for the answer to #4.

I thought Chucky Hansen was the answer to #4

The Answers to Question:
#4: What causes the most chaos in the Universe? Gravity
#5: On what planet in our Solar System does it snow Nitrogen and Methane? Pluto (While now classified as a Dwarf Planet, to many of us Pluto is just as much a Planet as Jupiter! And will remain so.)

Just for fun, I'm adding one more question.

Define: 9192631770 cycles of a Cesium Atomic Clock / 299792458 cycles of a Cesium Atomic Clock

The time it takes for light to travel one meter.

Blame Neil deGrasse Tyson for demoting Pluto to a Dwarf Planet along with Ceres, Haumea, Makemake, and Eris.

Please cite a reference for the answer to #4.

Yes, on the additional question.

Question #4: I may have painted Gravity with too broad a stroke when interpreting Hawking; yet didn't give enough credit to the Butterfly Effect and Chaos. Or perhaps I should have asked: What caused the most chaos in the Universe? A little more specificity. Thank you, RH.
http://www.theguardian.com/science/2010/sep/02/stephen-hawking-big-bang-creator

RH: Pluto, IMO, did not deserve demoting, even by the all popular Dr. Tyson of the AMNH. Unforgiving.

I attended one of Hawking's lectures in Seattle about 20 years ago. It was a small private lecture and we all got to meet him afterwards. Amazing the obstacles that he has overcome.

I attended one of Hawking's lectures in Seattle about 20 years ago. It was a small private lecture and we all got to meet him afterwards. Amazing the obstacles that he has overcome.

ALS (Amyotrophic Lateral Sclerosis) - the disability that affects Stephen Hawking - may have robbed him of his freedom of movement, but it did not steal from him his mind and spirit. It must have been quite a memorable experience to hear him lecture and to meet him in person. Thank you for sharing.
Swan

I attended one of Hawking's lectures in Seattle about 20 years ago. It was a small private lecture and we all got to meet him afterwards. Amazing the obstacles that he has overcome.

ALS (Amyotrophic Lateral Sclerosis) - the disability that affects Stephen Hawking - may have robbed him of his freedom of movement, but it did not steal from him his mind and spirit. It must have been quite a memorable experience to hear him lecture and to meet him in person. Thank you for sharing.
Swan

It was very memorable. Nathan Myhrvold, head of Microsoft Research, had been a research assistant for Hawking at Cambridge and arranged for the visit. Hawking's biggest challenge was communication, it is much better now. Better computers and sensors.

Swan so sorry JJ and I did not attempt to answer any of your science questions. We so look forward to working on them. Rotor, good job and I am so happy that you stepped in and answered them and shared your experience of getting to meet Stephen Hawking. How exciting!

Swan keep the questions coming. We have learned so much researching those answers. I know it take a lot of time to find the questions to test us and we love it. I hope more of the forum members will get involved.

Tam

Thank you for your interest in Science questions - Please don't hesitate to join in on the fun!

ASTRONOMY/SPACE

1.Define Astronomical Unit.
2. Which Star is a huge cosmic diamond of 10 billion, trillion, trillion carats and where is this Star located?
3.Which Planet in our solar system has no seasons?
4. What is the only substance in the Universe that cannot be in solid form and why?
5.Venus is considerably hotter than Mercury, although it is further away from the Sun. Why?
6. Name the Planets whose Orbital Velocities (speed in mph around the Sun) are as follows:
a. 29,240mph
b. 10,700mph
c. 107,700mph
d. 67,000mph
e. 53,700mph

1. J**n H****s? Perhaps I misunderstood the question. 😀

1 AU = 149,597,870.700 kilometers (or 149,597,870,700 meters)
Definition: An Astronomical Unit is the mean distance between the Earth and the Sun. In 2012, the International Astronomical Union defined the distance to be 149,597,870,700 meters.

Historical Background: Tycho Brahe estimated the distance between the Sun and the Earth at 8 million kilometers (5 million miles). Later, Johannes Kepler estimated the AU was at 24 million kilometers (15 million miles). In 1672, Giovanni Cassini made a much better estimate by using Mars. By observing Mars from Paris and having a colleague, Jean Richer, also observe Mars at the same time in French Guiana in South America, Cassini determined the parallax of Mars. From that Cassini was able to calculate the distance from Earth to Mars, and then the distance from Earth to the Sun. Cassini calculated the AU to be at 140 million kilometers (87 million miles), which is lower, but very close to the modern day number.

2. The newly discovered cosmic diamond is a chunk of crystallized carbon 50 light-years from the Earth in the constellation Centaurus. (A light-year is the distance light travels in a year, or about 6 trillion miles.) It is 2,500 miles across and weighs 5 million trillion trillion pounds, which translates to approximately 10 billion trillion trillion carats, or a one followed by 34 zeros.

3.Neptune
Neptune has an axial tilt of 28.5°, which isn't too much different than Earth's. But this farthest of the gas giants doesn't really experience appreciable seasonal variation, although scientists say images from the Hubble Space Telescope showing changes in the brightness of clouds in the Neptune's southern hemisphere may be a sign of spring.

Seasons on Neptune last more than 40 years!

4. ???

5. Venus
Venus has a very small axial tilt -- 3° versus Earth's 23.5°. Its dense, acidic atmosphere produces a runaway greenhouse effect that keeps the surface at 750°K year-round, which is hot enough to melt lead.

This is as far as I got!

Thank you for your interest in Science questions - Please don't hesitate to join in on the fun!

ASTRONOMY/SPACE

1.Define Astronomical Unit.
2. Which Star is a huge cosmic diamond of 10 billion, trillion, trillion carats and where is this Star located?
3.Which Planet in our solar system has no seasons?
4. What is the only substance in the Universe that cannot be in solid form and why?
5.Venus is considerably hotter than Mercury, although it is further away from the Sun. Why?
6. Name the Planets whose Orbital Velocities (speed in mph around the Sun) are as follows:
a. 29,240mph
b. 10,700mph
c. 107,700mph
d. 67,000mph
e. 53,700mph

Well done: Thank you Alana!

1. An Astronomical Unit is 93 million miles - the distance from Earth to the Sun.

2. Lucy - http://www.spacetoday.org/DeepSpace/Stars/WhiteDwarfs/LucyDiamondStarWhiteDwarf.html

3. Venus - http://www.universetoday.com/36887/does-venus-have-seasons/
(Although Neptune would be expected to have no seasons, it has two: As you said, each does, indeed , last more than 40 years.)
Venus has no appreciable tilt as it circles the Sun, therefore no seasons.

5. Venus is considerably hotter than Mercury although it is further away from the Sun The thickness of Venus's atmosphere is so dense it traps the heat near the surface of the planet; Mercury has almost no atmosphere and therefore there is nothing to trap heat near the surface of the planet.

Still remaining are Questions #4 and Question #6!
Swan

Thanks for the challenge to my brain and my curiosity level!

You're very welcome, Alana. Thank you for your participation!

The following two questions remain. Have fun with them!
ASTRONOMY/SPACE

4. What is the only substance in the Universe that cannot be in solid form and why?

6. Name the Planets whose Orbital Velocities (speed in mph around the Sun) are as follows:
a. 29,240mph
b. 10,700mph
c. 107,700mph
d. 67,000mph
e. 53,700mph

#4 plasma?

#4 plasma?

In the Universe Helium is mostly in a plasma state. But it is actually liquid Helium. The Universe is simply not naturally cold enough to solidify liquid Helium. At 0 degrees K, it would require additional pressure to lower the temperature enough to solidify it.

http://chemwiki.ucdavis.edu/Inorganic_Chemistry/Descriptive_Chemistry/Main_Group_Elements/Group_18%3A_The_Noble_Gases/Chemistry_of_Helium#Solid_and_liquid_phases

a. Saturn's speed is29,240mph
b. Pluto is veritably creeping around its orbit at only 10.7 thousand miles per hour.
c. Mercury's orbital speed is 1.607(67,000)=107.7 thousand miles per hour as befits a planet named for the god of speed.
d. Earth's speed is 67 thousand miles per hour.
e. Mars is a bit of a laggard. Its speed is only 0.802(67,000)=53.7 thousand miles per hour.

a. Saturn's speed is29,240mph
b. Pluto is veritably creeping around its orbit at only 10.7 thousand miles per hour.
c. Mercury's orbital speed is 1.607(67,000)=107.7 thousand miles per hour as befits a planet named for the god of speed.
d. Earth's speed is 67 thousand miles per hour.
e. Mars is a bit of a laggard. Its speed is only 0.802(67,000)=53.7 thousand miles per hour.

a. Very, very close: While Saturn orbits the Sun every 29.4 yrs. at a speed of 21,637 mph., it is our friend Jupiter who orbits the Sun every 11.9 years at a speed of 29,240 mph. Their speeds are nearly the same.

b. Yes. That's "OUR PLANET" Pluto! Pluto "creeps" around the Sun every 248 years!

c. Yes. And Mercury orbits the Sun every 88 days!

d. Yes. Earth...@365days/year orbit.

e. Yes. Mars who orbits the Sun every 687 days.

WELL DONE EVERYBODY! Thank You All!
Swan

Stellar Relic

The Universe is old. 13.798 billion years old, to be precise (give or take about 37 million years or so). That’s so old, it’s genuinely a little tricky to wrap your head around – 200 million years ago, dinosaurs roamed planet Earth. 580 million years ago, complex life emerged on our world. The earliest known evidence for life on Earth dates back to 3.7 billion years ago, a few hundred million years after the planet formed around 4.54 billion years ago. This, in turn, was shortly after the Sun itself formed, 4.57 billion years ago. But compared to some stars out there, the Sun itself is still young…

The unassuming little point of light in the centre of this image is something really quite special. Just 6000 light years away, it’s the oldest star ever discovered. Going by the designation of SMSS J031300.36-670839.3, this star is older than the very galaxy which we live in, and formed when the Universe itself was still young.

I’m not going to give an actual age for the star because, the thing is, we simply don’t know. Quoting Anna Frebel, a Stellar Archaeologist (which has to be one of the coolest job titles ever) – we don’t actually know the star’s age… quoting any age is pretty much made up. So how do we know this star is so old? Well, the thing about astronomy is that all we ever really have to go on are photons, but photons can tell us an awful lot…

Good evening everyone:

Anyone interested in another round of science questions? Please join in on the fun!

Earth rotates on it's axis once every 24 hours:

1. Which Planet rotates on it's axis once every 243 days?
2. Which Planet rotates on it;s axis once every 6.39 days?
3. Which Planet rotates on it's axis once every 1.03 days?
4. Which Planet rotates on it's axis once every 0.48 days or every 10 hours?

THE ELEMENTS:
1. Made up of two elements, what is Dihydrogen Monoxide?
2. Name the only two elements on Earth that are liquid at room temperature.
3. Although colorless as a gas, what element in liquid and solid forms is blue in color?
4.What element is the densest of all the elements?
5. What element is the second densest of all the elements?
6. This element is an excellent conductor of heat and electricity, is a soft, yellow metal that is so malleable that one gram can be beaten into a one (1) square meter sheet. It is dense and a tennis ball size sample would weigh about 5.7lbs.
7. The best electric conductor and the best thermal conductor of any metal, one (1) grain of this element can be pressed into a sheet 150X "thinner" than a sheet of paper ; and one (1) ounce of this element can be drawn into a wire 8000 feet long.

Enjoy!
Swan

G'evening everyone:
Relax a moment and enjoy a year of mesmerizing solar flares observed and recorded by NASA's Solar Dynamics Observatory.
Swan

http://www.youtube.com/watch?v=NAg4qXsk99c

1.Venus rotates very slowly, taking 243 days to complete one turn.
2. It takes Pluto only 6.39 days to rotate on its axis.
3. there are 1.03 Martian days
4. Jupiter is the largest planet in the Solar System, with a diameter of 142,980 kilometers, more than 11 times wider than the Earth. Jupiter orbits the Sun once every 12 years. It rotates very fast, in only 10 hours.

1. Dihydrogen Monoxide (DHMO) is a colorless and odorless chemical compound, also referred to by some as Dihydrogen Oxide, Hydrogen Hydroxide, Hydronium Hydroxide, or simply Hydric acid. Its basis is the highly reactive hydroxyl radical, a species shown to mutate DNA, denature proteins, disrupt cell membranes, and chemically alter critical neurotransmitters. The atomic components of DHMO are found in a number of caustic, explosive and poisonous compounds such as Sulfuric Acid, Nitroglycerine and Ethyl Alcohol.

2. Mercury commonly known as quicksilver and was formerly named hydrargyrum
3. Oxygen exists in all three forms - liquid, solid, and gas. The liquid and solid forms are a pale blue colour. However, oxygen gas is colourless, odourless, and tasteless. The elemental structure is a cubic crystal shape.

4. & 5. Density is mass per unit volume. Either of two elements can be considered the element with the highest density: osmium or iridium. The density of the element depends on many factors, so there isn't a single number for density that would allow us to identify one element or the other as the most dense. Each of these elements weigh approximately twice as much as lead. The calculated density of osmium is 22.61 g/cm3 and the calculated density of iridium is 22.65 g/cm3, though the density of iridium has not been experimentally measured to exceed that of osmium.

6.Gold Element
A soft, yellow, corrosion-resistant element, the most malleable and ductile metal, occurring in veins and alluvial deposits and recovered by mining or by panning or sluicing. Gold is a good conductor of heat and electricity, and is unaffected by air and most reagents. A good thermal and electrical conductor, gold is generally alloyed to increase its strength, and it is used as an international monetary standard, in jewelry, for decoration, and as a plated coating on a wide variety of electrical and mechanical components.The term carat describes the amount of gold present - 24 carats is pure gold. The Atomic Number of this element is 79 and the Element Symbol is Au.

7. Silver is the metal that is the best conductor of electricity and is used in expert equipment such as satellites that require high conductivity states. However, due to its cost, cooper is the preferred conductor

The dihydrogen monoxide hoax involves calling water by an unfamiliar name, "dihydrogen monoxide", followed by a listing of real effects of this chemical, often presented as an argument that this substance should be regulated, labeled as hazardous, or banned. The hoax is intended to illustrate how the lack of scientific literacy and an exaggerated analysis can lead to misplaced fears.

"Dihydrogen monoxide", shortened to "DHMO", is a name for water that is consistent with basic rules of chemical nomenclature, but is not among the names published by IUPAC and is almost exclusively used in a satirical context. Other chemicals names that also indicate water, usable in hoax variations, are hydroxyl acid and hydrogen oxide.

http://www.snopes.com/science/dhmo.asp

1.Venus rotates very slowly, taking 243 days to complete one turn. Yes.

2. It takes Pluto only 6.39 days to rotate on its axis. Yes.

3. there are 1.03 Martian days . Yes

4. Jupiter is the largest planet in the Solar System, with a diameter of 142,980 kilometers, more than 11 times wider than the Earth. Jupiter orbits the Sun once every 12 years. It rotates very fast, in only 10 hours. Yes.

1. Dihydrogen Monoxide (DHMO) is a colorless and odorless chemical compound, also referred to by some as Dihydrogen Oxide, Hydrogen Hydroxide, Hydronium Hydroxide, or simply Hydric acid. Its basis is the highly reactive hydroxyl radical, a species shown to mutate DNA, denature proteins, disrupt cell membranes, and chemically alter critical neurotransmitters. The atomic components of DHMO are found in a number of caustic, explosive and poisonous compounds such as Sulfuric Acid, Nitroglycerine and Ethyl Alcohol. Yes.

***AND please note that Water would have been incorrect as described by Rotorhead sited as follows: (I posted this question to see if "water" was going to be an answer...just for fun...lol.)

rotorhead [ PM ]
Re: Science anyone?
February 16, 2014 02:18PM Registered: 8 years ago
Posts: 1,680

The dihydrogen monoxide hoax involves calling water by an unfamiliar name, "dihydrogen monoxide", followed by a listing of real effects of this chemical, often presented as an argument that this substance should be regulated, labeled as hazardous, or banned. The hoax is intended to illustrate how the lack of scientific literacy and an exaggerated analysis can lead to misplaced fears.

"Dihydrogen monoxide", shortened to "DHMO", is a name for water that is consistent with basic rules of chemical nomenclature, but is not among the names published by IUPAC and is almost exclusively used in a satirical context. Other chemicals names that also indicate water, usable in hoax variations, are hydroxyl acid and hydrogen oxide.

2. Mercury commonly known as quicksilver and was formerly named hydrargyrum. Yes. Mercury and Bromine are the only two elements liquid on Earth at room temperature.

3. Oxygen exists in all three forms - liquid, solid, and gas. The liquid and solid forms are a pale blue colour. However, oxygen gas is colourless, odourless, and tasteless. The elemental structure is a cubic crystal shape. Yes.

4. & 5. Density is mass per unit volume. Either of two elements can be considered the element with the highest density: osmium or iridium. The density of the element depends on many factors, so there isn't a single number for density that would allow us to identify one element or the other as the most dense. Each of these elements weigh approximately twice as much as lead. The calculated density of osmium is 22.61 g/cm3 and the calculated density of iridium is 22.65 g/cm3, though the density of iridium has not been experimentally measured to exceed that of osmium. Yes.

6.Gold Element Yes.
A soft, yellow, corrosion-resistant element, the most malleable and ductile metal, occurring in veins and alluvial deposits and recovered by mining or by panning or sluicing. Gold is a good conductor of heat and electricity, and is unaffected by air and most reagents. A good thermal and electrical conductor, gold is generally alloyed to increase its strength, and it is used as an international monetary standard, in jewelry, for decoration, and as a plated coating on a wide variety of electrical and mechanical components.The term carat describes the amount of gold present - 24 carats is pure gold. The Atomic Number of this element is 79 and the Element Symbol is Au.

7. Silver - Yes.
Silver is the metal that is the best conductor of electricity and is used in expert equipment such as satellites that require high conductivity states. However, due to its cost, cooper is the preferred conductor

Fantastic work! Thank you for your participation and for all of your additional information, which continues to make science interesting and a lot of fun! Congratulations!
Swan