What s going on here? Common sense question .

I think there is no air in the barrel filled with gasoline, and although the sparks brought by the bullet come into contact with the gasoline, there is no air and cannot burn. And there is both air and gasoline vapor in the barrel with very little gasoline, and the spark brought by the bullet ignites the mixed gas in an instant, and it happens**!

First of all, the heat produced by the two is about the same.

But the specific heat capacity of the liquid is much larger, so the temperature rises very little, and it doesn't reach the ignition point.

And the gas ......The ignition point can be reached.

On the other hand, I also feel that it has a little bit to do with oxygen, but it's not very much, and the oxygen can be replenished immediately after the shot, in other words, if you use rockets instead of bullets, you should be able to**, at least that's what you watch on TV.

The necessary condition for combustibles to be ignited or even ** is to have a certain amount of oxygen to support combustion and **.

If the barrel is full of gasoline, even if it reaches the ignition point, it will not be ignited without the oxygen necessary to support combustion.

When there is less gasoline in the barrel, there is not only enough oxygen in the barrel for combustion, but also because the gasoline volatilizes and mixes with oxygen, it is very easy to encounter Mars.

In my opinion, the three elements of combustion are combustibles, accelerants (generally air), and temperature to reach the ignition point of combustibles. So I understood it this way:

There is no air in the slow-fuel gasoline barrel, only the combustible material in the bullet hole area is in contact with the spark and burns a small part, the internal gasoline runs out of air and the combustion stops.

Needless to say, you know the rest.

I think it can be compared to the "hydrogen ** experiment" in the textbook

If there is any error, please correct it, thank you.

When there is little gasoline, there is a large amount of gasoline vapor and air in the barrel that is well mixed.

In case of sparks, it is easy**.

There is no contact with air when full.

The network is not good, so it's stuck, quit and try again.

emmm, maybe it's stuck? The character's face is gone, so let's quit and try again.

Virus interference. Install anti-virus software Kingsoft Antivirus.

It's hard to describe.,Maybe the firewall is blocking the communication request.,Maybe the port is banned.,If it's not limited to trouble.,Let the master show you.,If it's really not good, reinstall the system.。

Take a look at going directly to this directory and click to see if it can be executed.

If you can't get in, it's a matter of the permissions of the user you're currently logged into.

1.The mobile phone is connected to the wifi signal, but the wifi has failed and cannot access the Internet normally, so it will show that there is a network but WeChat cannot connect to the server. Reconnecting the wifi solves the problem.

2.It may be that the wireless router settings are due to the fact that we need a fixed IP to access the Internet or your IP is preempted by other users, so let's try it with a different IP address. That is, restarting the router solves the problem.

The permission is restricted, as long as the restriction is turned on.

You try turning the network off and back on.

1 First of all, when you encounter this kind of problem, it is likely that the administrator account is banned, right-click on [Computer] and then click on the [Manage] option.

2 After opening the computer management interface, click Local Users and Groups in the left menu, and then click Users below.

3.Find the administator, right-click, and select Properties.

4 .Check whether [Disable Account] in the Administrator Properties screen is selected. If checked, you need to uncheck it to ensure that the administrator account is running.

5.Next, go back to your computer and right-click on the file that prompts Windows cannot access the specified device, path, or file. Right-click and click Properties.

6.Finally, after opening the properties interface, click Security at the top, select Admin in the group or user name, and then select all permissions below Allow to solve the problem.