Score
Title
863
How To Search ELI5: A Quick Reminder About Rule 7
14228
ELI5: Why do cars travel in packs on the highway, even when there are no traffic stops to create groups?
33
ELI5: Why do human eyes show so much white while most mammals don't have much visible white of the eye?
6
ELI5: SD. SS. SA. Gestapo. Wehrmacht. Sipo. Kripo. What were they all and how do they relate to each other?
32
ELI5: How come smart phones can run intense games without a fan and still not burn the CPU, but a desktop computer can't even load the desktop for more than a few minutes without permanent damage?
4
ELI5: Why sliding a knife makes a better cut than just pressing it down?
6
ELI5: When and why did 8 hours of sleep become the standard for a solid night’s rest?
32
ELI5: Why is ?4 = -2 false?
116
ELI5: If we breathe in O2 and use the oxygen, how do we release CO2? The same ammount of oxygen we took in, just an added carbon atom
20
ELI5 So, Shrimp have 16 color rods, enabling them to see many more colors than us humans. Would there ever be a way (surgically or not) for us to see those new colors?
3
ELI5: Why does feathers contract when in contact with oil?
4
ELI5: Why do certain types of noise enhance our abilities to focus and study whereas others don't?
9
ELI5: Going off the idea that we never actually 'touch' anything how can something like a knife be sharp, is it just the magnetic field around it that's sharp?
4
ELI5: What is unique about Playstation 2 disks that prevents us from booting burned ISOs?
59
ELI5: What happens to dust particles that get in to the eyes and lungs?
7
ELI5: Other than simply not liking it, what biologically causes sudden loss of interest in something?
2
ELI5: does juice expire and how? Is it more about the taste goong bad or is it unhealthy to drink juice that has expired a few months ago?
3
ELI5: What is the biology behind being able to raise one eyebrow but not the other?
16
ELI5: Why does the sensation of having to pee come in waves of intensity, such as needing to pee one minute and then losing that feeling the next?
32
ELI5: How does a telephone plug work with both a phone and a modem? Is it the same data being transferred or is there multiple types of data being passed and the device decides which one it needs?
11
ELI5: The Indian caste system.
1
ELI5: What is multi level marketing?
63
ELI5: What is happening internally when a boxer 'loses his feet' ?
7
ELI5: According to the IMF, the world's debt has reached 225% of the world's GDP. How is this possible?
1
ELI5 - calorie partitioning and what we can do (if anything) to control it.
1
ELI5: How Scupper Holes work?
0
ELI5: Why are pre-prepared meals generally seen in such a negative light? Where is the line drawn between what is a "reasonable shortcut" when cooking or not?
1
ELI5:Why so many people in south east asia idolized half white people?
2
ELI5: Protons, electrons and neurons - how do they dictate an elements properties?
39
ELI5: Why do mirrors that are placed parallel to each other begin to tint green further into the reflection?
3
ELI5: Why is the grape Welch's fruit snack always tougher to chew than the rest of the flavors?
3
ELI5:The lagging strand during DNA replication and Okazaki fragments.
22
ELI5: Whatever happened to the "hypsilophodont" classification in dinosaurs? How do you classify those now?
1
ELI5: Why US legislation seems more "messy" than other first world countries? Or is it just sensationalized by the news media?
2
ELI5: why do RBC need energy/ATP?
2
ELI5: how are lasers used to measure distance so accurately, and why can it also track movement i.e. with a PC mouse?
15
ELI5: Why do women take the last name of their husband when the get married?
2
ELI5: How do you go about opening/starting a school
0
ELI5: why does the same 20 degree Celsius setting feels cool for cooling mode but feels hot for heating mode, while they are actually the same temperature?
3
ELI5: In real estate, what incentive does the buyer's agent have to keep the price down?
4
ELI5: Studying vs fun
3 agate_ They do. The acid in lemon juice and vinegar can trigger the same chemical reactions as sulfuric acid, but they're much weaker and the reactions aren't nearly as intense. Lemon juice can be used to make a battery, can cause mild burns on sensitive parts of your skin, and can even "cook" food in ways very similar to weak sulfuric acid. The sour taste of lemons and vinegar is a sign of the acid in them. I accidentally got a taste of dilute sulfuric acid once: it tasted like the sourest lemon you could possibly imagine. (Do not try this at home, obv.)
3 chris06095 Acids (and their chemical antitheses, "bases") have their strength measured in a scale called pH (that's labelled correctly). pH stands for "potential of Hydrogen", which means how aggressively the acid will work to take or acquire a hydrogen atom from a substance it comes in contact with, or how likely to donate one, in the case of an alkaline solution. (Alkaline is the technical name for a "base".) The pH scale reads from 14 (for the strongest bases, such as chlorine bleach) to 0 (for the strongest acids). In general, as others have noted, citric acid (lemon juice) is less aggressively acidic than battery acid, sulfuric or hydrochloric acid, to name some of the more potent ones that we may encounter. (Most of the common things that we drink are mildly acidic, including milk and orange juice. Plain tap water generally has a "slightly acid" reading - just below 7 on the pH scale, and your blood has a "slightly alkaline" reading, just above 7. A pH of 7 is absolute neutrality, neither acid nor alkaline. Lemon juice and vinegar are generally around pH 2 or a little higher - still plenty acidic, but not as strong as the strongest acids.) Have a look at the Wikipedia entry for pH for more understanding and a visual representation of some common pH values: https://en.wikipedia.org/wiki/PH
0 Bigted1800 They all burn, its called an exothermic chemical reaction, meaning that it reacts with things that it comes into contact with that are capable of reacting. This means it alters physical objects it comes into contact, and produces heat. The degree is based on how concentrated the acid is, and how strong the acid itself is. Lemon juice is a mild acid and is very dilute, meaning that you can touch it with your skin or even ingest small quantities without sustaining damage, however with sustained contact it may lighten skin, hair, and damage your teeth. When it reacts it is also producing tiny amounts of heat, but probably not enough to notice or offset the cooling effects of the water.
3 0 agate_ They do. The acid in lemon juice and vinegar can trigger the same chemical reactions as sulfuric acid, but they're much weaker and the reactions aren't nearly as intense. Lemon juice can be used to make a battery, can cause mild burns on sensitive parts of your skin, and can even "cook" food in ways very similar to weak sulfuric acid. The sour taste of lemons and vinegar is a sign of the acid in them. I accidentally got a taste of dilute sulfuric acid once: it tasted like the sourest lemon you could possibly imagine. (Do not try this at home, obv.)
3 0 chris06095 Acids (and their chemical antitheses, "bases") have their strength measured in a scale called pH (that's labelled correctly). pH stands for "potential of Hydrogen", which means how aggressively the acid will work to take or acquire a hydrogen atom from a substance it comes in contact with, or how likely to donate one, in the case of an alkaline solution. (Alkaline is the technical name for a "base".) The pH scale reads from 14 (for the strongest bases, such as chlorine bleach) to 0 (for the strongest acids). In general, as others have noted, citric acid (lemon juice) is less aggressively acidic than battery acid, sulfuric or hydrochloric acid, to name some of the more potent ones that we may encounter. (Most of the common things that we drink are mildly acidic, including milk and orange juice. Plain tap water generally has a "slightly acid" reading - just below 7 on the pH scale, and your blood has a "slightly alkaline" reading, just above 7. A pH of 7 is absolute neutrality, neither acid nor alkaline. Lemon juice and vinegar are generally around pH 2 or a little higher - still plenty acidic, but not as strong as the strongest acids.) Have a look at the Wikipedia entry for pH for more understanding and a visual representation of some common pH values: https://en.wikipedia.org/wiki/PH
-2 0 Bigted1800 They all burn, its called an exothermic chemical reaction, meaning that it reacts with things that it comes into contact with that are capable of reacting. This means it alters physical objects it comes into contact, and produces heat. The degree is based on how concentrated the acid is, and how strong the acid itself is. Lemon juice is a mild acid and is very dilute, meaning that you can touch it with your skin or even ingest small quantities without sustaining damage, however with sustained contact it may lighten skin, hair, and damage your teeth. When it reacts it is also producing tiny amounts of heat, but probably not enough to notice or offset the cooling effects of the water.