Score
Title
75
AskScience Panel of Scientists XVIII
253
AskScience AMA Series: "I am Rhett Allain, physicist and technical consultant on Mythbusters and MacGyver. Ask me about the physics of pretty much anything!
4809
Does a Mayfly, which only lives a day, evolve fast than a human?
11
What is special about sunlight versus artificial light that plants need it?
103
What is the reason for Ethiopia demographic boom in recent years?
19
As a snake grows in length, does it grow additional ribs and vertebrae, or do they have a set number?
4798
Is body chemistry affected by sound, in the same way that melatonin production is affected by light?
46
How do earthquakes happen that are far from tectonic plates fault lines?
14
Has there ever been a trench deeper than the Marianas Trench in Earth's geologic history?
8
Why are green aurora borealis more common than the red/ purple ones?
150
How does a flu vaccine lessen symptoms when you catch a flu variant that isn’t one of the variants in that seasons vaccination?
6
Have we ever seen a stellar ignition?
4
Do other animals have 'accents' like humans do?
2
what determines the life span of organisms?
6
Why can’t we increase the wattage of chargers to make devices charge faster?
1
Why isn't Boron created through normal stellar nucleosynthesis (i.e. nuclear fusion in stars)?
15
Are there any successful attempts to create a substance that is made up entirely with antimatter particles?
4
How do they catch interplanetary dust particles?
1
How do satellites in space protect their electronics from all the different types of Electromagnetic waves they are exposed to?
77
How do astronomers know the "red shift" is coming from the Doppler effect and not from static stars producing light at a red wavelength?
5
What are all the swirly patterns on Jupiter?
4093
Is there any organism that has more than one brain?
75
Do NSAIDs, such as ibuprofen, reduce specific areas of inflammation or do they reduce inflammation overall?
1
How do bonding and anti bonding orbitals form?
1
How much of an effect do the Sun and the Moon have on the Earth's axial precession, if any?
0
Does sunlight lose any energy or specific rays (UV-A, UV-B, etc.) when it's reflected by a mirror?
3
Why do some plants need full strong direct sunlight but others need partial shade and indirect sunlight? What is the physiological/chemical reason behind this?
3421
How much radiation does a luggage scanner deliver vs say medical x-ray?
0
Do other moons in our solar system have a 'near side' and 'far side' relative to the body they orbit?
35
Would Koko, the sign-language speaking gorilla, have been able to translate what a different, non-signing gorilla was saying?
17
[chemistry][nuclear physics] if the island of stability does exist, do we have any way of estimating what the behavior/properties of those elements will be like?
46
How do we know the temperature of the centre of the sun?
5
When sound waves interfere in air, they create beat frequencies. Does this also happen when electromagnetic waves interfere in space?
7
Will more electric cars on the road have any positive effect on the environment if electricity to power these cars is still generated by fossil fuels?
18
Most antibacterial sprays kill 99.9% of germs. What's the 0.1% of bacteria consist of?
32
How do they reproduce seedless fruits/vegetables ?
14
Is it possible for an object to be travelling so fast it would bounce off the atmosphere?
17
Is Crystallized Bismuth the Only Instance of Naturally Occurring Right Angles?
4
How do we know what the internal structure of planets and moons is?
6
If oil is an organic bi-product on earth, how can there be oil on other planets such as Titan?
617
Can someone explain the environmental impact of electric car batteries?
9
How is the CMB used to calculate the Hubble constant?
7 wonkey_monkey A monkey would probably take your laughter to be a sign of aggression, as you would be baring your teeth. Dogs, on the other hand, can not only recognise smiles and laughter as good things (in the sense of a reward), they can also (it is believed) extrapolate from this to actually appreciate and empathise with your underlying mood: http://www.telegraph.co.uk/news/science/science-news/12096738/Dogs-can-read-human-emotions-study-finds.html They've lived with and been bred by us for so long now that they're far better than even our closest relative, the chimpanzee, at recognising our facial expressions.
7 0 wonkey_monkey A monkey would probably take your laughter to be a sign of aggression, as you would be baring your teeth. Dogs, on the other hand, can not only recognise smiles and laughter as good things (in the sense of a reward), they can also (it is believed) extrapolate from this to actually appreciate and empathise with your underlying mood: http://www.telegraph.co.uk/news/science/science-news/12096738/Dogs-can-read-human-emotions-study-finds.html They've lived with and been bred by us for so long now that they're far better than even our closest relative, the chimpanzee, at recognising our facial expressions.