Score
Title
439
AskScience Panel of Scientists XVII
2197
Why is the Congo River so deep?
7375
Are there any predators that hunt for sport rather than for food?
11
When water does down the drain, why does it always go down the drain in a form of whirlpool.?
25
What causes the thick mist/fog that I frequently see coming off of mountains in my area?
7
What makes things transparent?
5
What allows certain cars and airplanes to have their own Wifi?
182
Why are hail storms so short?
17
Many poisonous and venomous vertebrates get their toxins from toxic arthropods that form part of their diets. Why can't they just form the toxins themselves the same ways their prey do?
58
If aliens were to look at earth through a telescope from 65 million lightyears away, would they see dinosaurs?
2
How Bayes rule was used to help with aiming cannons?
10715
What exactly does the cold virus do to me to make me so weak?
10
Why does fire flicker?
30
What exactly is string theory and how does it work?
14
Are initial telomere lengths fairly consistent in mammals? Barring external circumstances, do they decay at the same rate?
4
I understand conduction and radiation as modes of heat transfer, but convection confuses me. Why does fluid moving over an object remove heat from it as opposed to adding heat due to friction?
15
What happens to the brain as you fall asleep? Are certain proteins released to induce sleep? Is it seen as a voluntary or involuntary action?
6
How do transitors amplify?
17
Why do some things burn and some things melt?
1
Is there a limit to the energy density of batteries?
11
Why does an animal like the sea otter have a long gestation period (145-325 days) but only have a lifespan of 15 years or so. Is there a relationship between gestation period and lifespan across marine mammals like that/or any other mammal?
7
Which modern encryption standards would be both practical to implement on a large scale using technology from the 1940s and still effectively unbreakable today?
4
How much does it actually cost to maintain the internet?
10
What is the significance of a quasar discovered at 690 million years after big bang?
1
How do particle accelerators such as the LHC detect particle collision products?
6
Why does water not heat up through the friction created by movement (ocean waves/shaking it in a bottle)?
4
How do drug companies decide on the form(s) of delivery for a given drug?
5
[Embryology] - Is the notochord derived from the endoderm or the mesoderm? I have 2 conflicting sources.
5
What makes some batteries chargeable and others not?
19
Why do bigger and heavier molecules have a higher boiling point compared to smaller and lighter molecules?
8
Is there a coating that you can put on a surface to make it easier for frost to form on the surface?
4
Are there certain materials that behave like mirrors to other parts of the EM spectrum that do not look like mirrors to us?
3
Apart from humans do any other animals use drugs for recreation?
6
Are there any internal mechanisms of trees from S. Hemisphere (ex. Australia) that make them go “out of whack” when introduced in the N. Hemisphere?
4
If the “new” elements (e.g. Oganesson) have half-lives of microseconds or less, how do scientists know they’ve been synthesized at all?
2
Why is snow white and not transparent, like ice?
7
how does the temperature of a metal effect the hall voltage?
8044
Can a planet have more than 4 seasons?
1
What influences height? Other than genetics. Does where you are born and raised impact height?
1
How are we able to make transistors near the size of atoms?
0
Why is graphene so light?
17 Critical_Liz In the US and the industrialized world it's manageable, expensive but manageable. Medication can reduce the viral load to almost nothing, this makes it possible for patients to lead normal lives, even having children without passing the virus on. They still have to take precautions as does anyone with a compromised immune system. (yet another reason why anti vaxxers are dangerous) In less developed countries it is a death sentence. It's been awhile since I've read up on it but it was particularly bad in Africa. Uganda, like 20 years ago, was able to stem transmission by taking a proactive stance on safe sex, much like the US in the 90s.
6 baloo_the_bear It used to be that Infectious Disease (as a specialty) was '*travel medicine*'. Then came HIV/AIDS, and it changed the landscape of medicine forever. AIDS, or acquired immunodeficiency syndrome, is the end result of infection with HIV, the human immunodeficiency virus. AIDS can be diagnosed when certain [criteria](https://www.cdc.gov/hiv/statistics/surveillance/terms.html) are met or a person suffers any [AIDS defining illness](https://en.wikipedia.org/wiki/AIDS-defining_clinical_condition). These opportunistic organisms are ubiquitous, so the only defense we have from them is a constant battle fought by our immune system. Patients who meet certain CD4 count criteria (a measure of a type of cell of the immune system) are given prophylactic antibiotics until their CD4 counts respond to therapy. HIV positive people now have essentially a normal life expectancy. The caveat to that is that they need to be appropriately treated. Uncontrolled HIV will lead to AIDS and can cause premature death from opportunistic infections. There are methods of reducing risk of transmission. Post-exposure prophylaxis and even pre-exposure prophylaxis exist for couples where one partner is positive and the other one is not. Maternal-to-fetal transmission is still possible, and HIV infection is one of the [contraindications to breastfeeding](http://pediatrics.aappublications.org/content/115/2/496). However, suitable alternatives to breastfeeding are not always available in developing countries, which has led to increased transmission rates in some areas of the world. Additionally, HIV positive people are also often co-infected with Hepatitis C or B, so looking at overall mortality introduces confounders. The consequences of contracting HIV are still life-altering. But modern medicine has allowed us to manage it. It is by no means as bad as it was even 10 or 20 years ago.
2 StardustSapien There was a recent update on the so-called "Berlin patient", a guy by the name of Timothy Brown who was [functionally cured](http://www.newsweek.com/hiv-cure-berlin-patients-incredible-recovery-now-one-step-closer-replication-707469) of AIDS after recieving a bone marrow transplant. We still haven't gotten to the point where an effective treatment can be publicly deployed. But scientists are making progress in understanding how his particular case can be replicated.
16 0 Critical_Liz In the US and the industrialized world it's manageable, expensive but manageable. Medication can reduce the viral load to almost nothing, this makes it possible for patients to lead normal lives, even having children without passing the virus on. They still have to take precautions as does anyone with a compromised immune system. (yet another reason why anti vaxxers are dangerous) In less developed countries it is a death sentence. It's been awhile since I've read up on it but it was particularly bad in Africa. Uganda, like 20 years ago, was able to stem transmission by taking a proactive stance on safe sex, much like the US in the 90s.
6 0 baloo_the_bear It used to be that Infectious Disease (as a specialty) was '*travel medicine*'. Then came HIV/AIDS, and it changed the landscape of medicine forever. AIDS, or acquired immunodeficiency syndrome, is the end result of infection with HIV, the human immunodeficiency virus. AIDS can be diagnosed when certain [criteria](https://www.cdc.gov/hiv/statistics/surveillance/terms.html) are met or a person suffers any [AIDS defining illness](https://en.wikipedia.org/wiki/AIDS-defining_clinical_condition). These opportunistic organisms are ubiquitous, so the only defense we have from them is a constant battle fought by our immune system. Patients who meet certain CD4 count criteria (a measure of a type of cell of the immune system) are given prophylactic antibiotics until their CD4 counts respond to therapy. HIV positive people now have essentially a normal life expectancy. The caveat to that is that they need to be appropriately treated. Uncontrolled HIV will lead to AIDS and can cause premature death from opportunistic infections. There are methods of reducing risk of transmission. Post-exposure prophylaxis and even pre-exposure prophylaxis exist for couples where one partner is positive and the other one is not. Maternal-to-fetal transmission is still possible, and HIV infection is one of the [contraindications to breastfeeding](http://pediatrics.aappublications.org/content/115/2/496). However, suitable alternatives to breastfeeding are not always available in developing countries, which has led to increased transmission rates in some areas of the world. Additionally, HIV positive people are also often co-infected with Hepatitis C or B, so looking at overall mortality introduces confounders. The consequences of contracting HIV are still life-altering. But modern medicine has allowed us to manage it. It is by no means as bad as it was even 10 or 20 years ago.
2 0 StardustSapien There was a recent update on the so-called "Berlin patient", a guy by the name of Timothy Brown who was [functionally cured](http://www.newsweek.com/hiv-cure-berlin-patients-incredible-recovery-now-one-step-closer-replication-707469) of AIDS after recieving a bone marrow transplant. We still haven't gotten to the point where an effective treatment can be publicly deployed. But scientists are making progress in understanding how his particular case can be replicated.